Animal Cloning Quotes

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As Jeremy Bentham had asked about animals well over two hundred years ago, the question was not whether they could reason or talk, but could they suffer? And yet, somehow, it seemed to take more imagination for humans to identify with animal suffering than it did to conceive of space flight or cloning or nuclear fusion. Yes, she was a fanatic in the eyes of most of the country. . .Mostly, however, she just lacked patience for people who wouldn't accept her belief that humans inflicted needless agony on the animals around them, and they did so in numbers that were absolutely staggering.
Chris Bohjalian (Before You Know Kindness)
I wish I could sculpt my shadow into my night clone, and it could be out earning me money while I slept, instead of being folded up neatly in my underwear drawer like it is now.

Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
Another poll, from Gallup, found that infidelity is more universally disapproved of than polygamy, animal cloning, and suicide.11 So if there were two guys at a bar, one cheating on his wife and another with a cloned pig named Bootsie, it would be the cheater, not Bootsie the pig, getting more disapproving looks.
Aziz Ansari (Modern Romance)
Amnesia is not the only time you’ll forget who you are. It’ll also happen the first time you see your own clone.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
Clones: Why should you take the blame for your mistakes when there’s a genetic replica of yourself that’d make a perfectly good scapegoat?
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
When I think about my clone, random songs pop into my head. Songs like, “Happy Birthday.” Will he celebrate the same birthday as me? He’d better, because without me, there’d be nothing for him to celebrate.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
The controversy over pet cloning is a debate over what it means to love an animal, and it involves values and judgments that we may never all agree upon.
Emily Anthes (Frankenstein's Cat: Cuddling Up to Biotech's Brave New Beasts)
The question is not where am I, but who am I? Where I am: Inside the body of my clone.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
The Bible says man has sin nature, but do clones have sin nature?
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
I’ll make a name for myself, after I make a copy of myself. The key to a productive life is cloning.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
A clone would make a great birthday gift, because it’s the only gift that keeps on giving. At least it’d better give me a birthday present every year. It owes its life to me.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
I think it’s important to set goals for myself, goals for the future, goals that I’ll demand my clones achieve for me.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
I’ll refer my clones to businesses and negotiate a better price for myself. And for myselves.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
My handyman is handicapped and oh so handsome, because he’s my clone.
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
intended as a dig at my father, the enterprise being another of science’s excesses, like cloning or whisking up a bunch of genes to make your own animal. Antagonism in my family comes
Karen Joy Fowler (We Are All Completely Beside Ourselves)
A similar idea is not the same as a clone. Many of the stories Disney animated were very old stories. Disney has made billions of dollars by regurgitating things that have been done before.
Catalina DuBois
Every man has a soul, but will every man’s clone have a soul? No, because me and some scientists will have sucked them out in the lab. Why sell your soul to the devil, when you can sell your clone’s soul?
Jarod Kintz (A Zebra is the Piano of the Animal Kingdom)
any illness that kills one animal threatens to wipe out all (91): This curse of closely knit species also applies to our dairy cows, now almost clones of one another; an illness that kills one can kill all.
Diane Ackerman (The Zookeeper's Wife)
During my first few months of Facebooking, I discovered that my page had fostered a collective nostalgia for specific cultural icons. These started, unsurprisingly, within the realm of science fiction and fantasy. They commonly included a pointy-eared Vulcan from a certain groundbreaking 1960s television show. Just as often, though, I found myself sharing images of a diminutive, ancient, green and disarmingly wise Jedi Master who speaks in flip-side down English. Or, if feeling more sinister, I’d post pictures of his black-cloaked, dark-sided, heavy-breathing nemesis. As an aside, I initially received from Star Trek fans considerable “push-back,” or at least many raised Spock brows, when I began sharing images of Yoda and Darth Vader. To the purists, this bordered on sacrilege.. But as I like to remind fans, I was the only actor to work within both franchises, having also voiced the part of Lok Durd from the animated show Star Wars: The Clone Wars. It was the virality of these early posts, shared by thousands of fans without any prodding from me, that got me thinking. Why do we love Spock, Yoda and Darth Vader so much? And what is it about characters like these that causes fans to click “like” and “share” so readily? One thing was clear: Cultural icons help people define who they are today because they shaped who they were as children. We all “like” Yoda because we all loved The Empire Strikes Back, probably watched it many times, and can recite our favorite lines. Indeed, we all can quote Yoda, and we all have tried out our best impression of him. When someone posts a meme of Yoda, many immediately share it, not just because they think it is funny (though it usually is — it’s hard to go wrong with the Master), but because it says something about the sharer. It’s shorthand for saying, “This little guy made a huge impact on me, not sure what it is, but for certain a huge impact. Did it make one on you, too? I’m clicking ‘share’ to affirm something you may not know about me. I ‘like’ Yoda.” And isn’t that what sharing on Facebook is all about? It’s not simply that the sharer wants you to snortle or “LOL” as it were. That’s part of it, but not the core. At its core is a statement about one’s belief system, one that includes the wisdom of Yoda. Other eminently shareable icons included beloved Tolkien characters, particularly Gandalf (as played by the inimitable Sir Ian McKellan). Gandalf, like Yoda, is somehow always above reproach and unfailingly epic. Like Yoda, Gandalf has his darker counterpart. Gollum is a fan favorite because he is a fallen figure who could reform with the right guidance. It doesn’t hurt that his every meme is invariably read in his distinctive, blood-curdling rasp. Then there’s also Batman, who seems to have survived both Adam West and Christian Bale, but whose questionable relationship to the Boy Wonder left plenty of room for hilarious homoerotic undertones. But seriously, there is something about the brooding, misunderstood and “chaotic-good” nature of this superhero that touches all of our hearts.
George Takei
being a true clone, the aphids are no more ‘social’ than the cells of your body. There is a single animal feeding on the plant. It just happens to have its body divided up into physically separate aphids, some of which play a specialized defensive role just like white blood corpuscles in the human body.
Richard Dawkins (The Selfish Gene)
When scientists underestimate complexity, they fall prey to the perils of unintended consequences. The parables of such scientific overreach are well-known: foreign animals, introduced to control pests, become pests in their own right; the raising of smokestacks, meant to alleviate urban pollution, releases particulate effluents higher in the air and exacerbates pollution; stimulating blood formation, meant to prevent heart attacks, thickens the blood and results in an increased risk of blood clots in the heart. But when nonscientists overestimate [italicized, sic] complexity- 'No one can possibly crack this [italicized, sic] code" - they fall into the trap of unanticipated consequences. In the early 1950s , a common trope among some biologists was that the genetic code would be so context dependent- so utterly determined by a particular cell in a particular organism and so horribly convoluted- that deciphering it would be impossible. The truth turned out to be quite the opposite: just one molecule carries the code, and just one code pervades the biological world. If we know the code, we can intentionally alter it in organisms, and ultimately in humans. Similarly, in the 1960s, many doubted that gene-cloning technologies could so easily shuttle genes between species. by 1980, making a mammalian protein in a bacterial cell, or a bacterial protein in a mammalian cell, was not just feasible, it was in Berg's words, rather "ridiculously simple." Species were specious. "Being natural" was often "just a pose.
Siddhartha Mukherjee (The Gene: An Intimate History)
The Pyrenean ibex, an extinct form of wild mountain goat, was brought back to life in 2009 through cloning of dna taken from skin samples. This was followed in June of 2010 by researchers at Jeju National University in Korea cloning a bull that had been dead for two years. Cloning methods are also being studied for use in bringing back Tasmanian tigers, woolly mammoths, and other extinct creatures, and in the March/April 2010 edition of the respected Archaeology magazine, a feature article by Zah Zorich (“Should We Clone Neanderthals?”) called for the resurrection via cloning of what some consider to be man’s closest extinct relative, the Neanderthals. National Geographic confirmed this possibility in its May 2009 special report, “Recipe for a Resurrection,” quoting Hendrik Poinar of McMaster University, an authority on ancient dna who served as a scientific consultant for the movie Jurassic Park, saying: “I laughed when Steven Spielberg said that cloning extinct animals was inevitable. But I’m not laughing anymore.… This is going to happen.
Thomas Horn (Forbidden Gates: How Genetics, Robotics, Artificial Intelligence, Synthetic Biology, Nanotechnology, and Human Enhancement Herald The Dawn Of TechnoDimensional Spiritual Warfare)
Because the scientific understanding of manic-depressive illness is so ultimately beholden to the field of molecular biology, it is a world in which I have spent an increasing amount of time. It is an exotic world, one developed around an odd assortment of plants and animals—maize, fruit flies, yeast, worms, mice, humans, puffer fish—and it contains a somewhat strange, rapidly evolving, and occasionally quite poetic language system filled with marvelous terms like “orphan clones,” “plasmids,” and “high-density cosmids”; “triple helices,” “untethered DNA,” and “kamikaze reagents”; “chromosome walking,” “gene hunters,” and “gene mappers.” It is a field clearly in pursuit of the most fundamental of understandings, a search for the biological equivalent of quarks and leptons.
Kay Redfield Jamison (An Unquiet Mind)
Jack coughed slightly and offered his hand. “Hi, uh. I’m Jack.” Kim took it. “Jack what?” “Huh?” “Your last name, silly.” “Jackson.” She blinked at him. “Your name is Jack Jackson?” He blushed. “No, uh, my first name’s Rhett, but I hate it, so…” He gestured to the chair and she sat. Her dress rode up several inches, exposing pleasing long lines of creamy skin. “Well, Jack, what’s your field of study?” “Biological Engineering, Genetics, and Microbiology. Post-doc. I’m working on a research project at the institute.” “Really? Oh, uh, my apple martini’s getting a little low.” “I’ve got that, one second.” He scurried to the bar and bought her a fresh one. She sipped and managed to make it look not only seductive but graceful as well. “What do you want to do after you’re done with the project?” Kim continued. “Depends on what I find.” She sent him a simmering smile. “What are you looking for?” Immediately, Jack’s eyes lit up and his posture straightened. “I started the project with the intention of learning how to increase the reproduction of certain endangered species. I had interest in the idea of cloning, but it proved too difficult based on the research I compiled, so I went into animal genetics and cellular biology. It turns out the animals with the best potential to combine genes were reptiles because their ability to lay eggs was a smoother transition into combining the cells to create a new species, or one with a similar ancestry that could hopefully lead to rebuilding extinct animals via surrogate birth or in-vitro fertilization. We’re on the edge of breaking that code, and if we do, it would mean that we could engineer all kinds of life and reverse what damage we’ve done to the planet’s ecosystem.” Kim stared. “Right. Would you excuse me for a second?” She wiggled off back to her pack of friends by the bar. Judging by the sniggering and the disgusted glances he was getting, she wasn’t coming back. Jack sighed and finished off his beer, massaging his forehead. “Yes, brilliant move. You blinded her with science. Genius, Jack.” He ordered a second one and finished it before he felt smallish hands on his shoulders and a pair of soft lips on his cheek. He turned to find Kamala had returned, her smile unnaturally bright in the black lights glowing over the room. “So…how did it go with Kim?” He shot her a flat look. “You notice the chair is empty.” Kamala groaned. “You talked about the research project, didn’t you?” “No!” She glared at him. “…maybe…” “You’re so useless, Jack.” She paused and then tousled his hair a bit. “Cheer up. The night’s still young. I’m not giving up on you.” He smiled in spite of himself. “Yet.” Her brown eyes flashed. “Never.
Kyoko M. (Of Cinder and Bone (Of Cinder and Bone, #1))
Mice were often the first test subjects for these techniques, and scientists were amazed at how effective the new methods were in the tiny creatures. By injecting new DNA into fertilized mouse eggs and then implanting those eggs into female mice, researchers found they could permanently splice the foreign DNA into the next generation and cause observable changes in the developing animals. These advances meant that any gene that scientists could isolate and clone in the lab could be tested and investigated; by adding the gene to cells, scientists could observe its effects and better understand the gene’s function
Jennifer A. Doudna (A Crack In Creation: Gene Editing and the Unthinkable Power to Control Evolution)
My view is that diversity is the breath of life, and we must not abandon that for any single form which happens to catch our fancy – even our genetic fancy. Cloning is the stabilisation of one form, and that runs against the whole current of creation – of human creation above all. Evolution is founded in variety and creates diversity; and of all animals, man is most creative because he carries and expresses the largest store of variety. Every attempt to make us uniform, biologically, emotionally, or intellectually, is a betrayal of the evolutionary thrust that has made man its apex. Yet
Jacob Bronowski (The Ascent Of Man)
Moral principles regarding natural selection seemed to be something they had left on the floor of what was now Kamino’s planetwide ocean, which perhaps explained why they were no more reluctant about providing game animals for Sojourn than they were about supplying shovel-handed clones to work in the mines of inhospitable Subterrel. Damask
James Luceno (Darth Plagueis)
Atomic manipulation, cloning, studies of the human aura, advanced mind control applications, animal/human crossbreeding, visual and audio wiretapping, the list goes on.
B. Branton (The Dulce Wars: Underground Alien Bases and the Battle for Planet Earth)
it took more than two hundred implantation attempts in fifty-seven goats for seven of them to get pregnant. Out of those seven pregnancies, only one was brought to term, and on July 30, 2003, Celia’s clone—the world’s first unextinct animal—was born, weighing in at 4.5 pounds. Roughly ten minutes later, though, she died; an extra growth on her lung prevented her from flourishing, and the bucardo became extinct a second time around.
Britt Wray (Rise of the Necrofauna: A Provocative Look at the Science, Ethics, and Risks of De-Extinction)
what we are and what it means to be a human being. They want us turned around, scrambled in our thinking, and confused. They want us to accept the human and animal cloning and the babies
Alex Jones (The Great Awakening: Defeating the Globalists and Launching the Next Great Renaissance)
To make Star Wars, you’ve got to hate Star Wars”—this is a maxim I’ve heard from more than one veteran of Lucasfilm’s design department. What they mean is that if you’re too reverential about what came before, you’re doomed. You’ve got to be rebellious and questing. The franchise must constantly renew itself by pulling incongruous items out of a grab bag of outside influences, as Lucas himself did from the start. Likewise, fandom must constantly renew itself with new generations of viewers brought in by the prequels, by more recent additions to the canon like The Clone Wars and Rebels animated TV shows—and, soon enough, by the sequels to the first two trilogies.
Chris Taylor (How Star Wars Conquered the Universe: The Past, Present, and Future of a Multibillion Dollar Franchise)
People easily believe in the transition of energy, image and voice through the air, and into their laptops and smartphones, but not in the transition of thought. And they easily accept the possibility of cloning animals and humans, or transforming them genetically, and even making hybrids with different species, but refuse to accept that we may be a hybrid of two or more alien species as well.
Daniel Marques (The 88 Secret Codes of the Power Elite: The Complete Truth about Making Money with the Law of Attraction and Creating Miracles in Life that is Being Hidden from You with Mind Programming)
Our earliest ancestors were created by mixing DNA from other advanced extraterrestrial (ET) races. These highly evolved beings who used their DNA to create our ancestors are our creators. The way they create life is not the same as the way our scientists clone animals and plants. Our scientists exploit and work against nature, while our creators work with nature. Our creators' way of combining DNA is more of a harmonious design similar to how the Universe first created life. It is done by an intelligent design that works in harmony with the laws of the Universe. Once they created life, it was nurtured and left alone so nature could take its course. However, our creators will always keep an eye on their creations and help them as much as possible without infringing upon their free will. The first human race was created for
Pao Chang (Staradigm: A Blueprint for Spiritual Growth, Happiness, Success and Well-Being)
...Everything that’s not asexual has two sexes, male and female. Most of the time it takes one of each to reproduce. Then there’s the whiptail lizard. This is a lizard that lives way the fuck out there in the middle of the desert, and sometimes it’s hard to find another lizard to mate with out there. Therefore, what the female whiptail can do is sort of make her eggs start dividing on their own. She makes daughters, clones of herself. It’s called parthenogenesis.
Erin O'Riordan (Cut)
Clones look identical. If you cloned an animal ten times, you may have ten different looking creatures. A cat called Rainbow had a clone called Copycat (what else?) They looked nothing alike in color or pattern.
James Egan (The Mega Misconception Book (Things People Believe That Aren't True 5))
What we have learned about genes has allowed us to understand that we are not so much things merely existing in the world as beings in constant interaction with the world. If you took this idea to an extreme and imagined that you grew up on another planet, the essentially dynamic nature of animal building by genes and environment might mean you'd look very different. Cloned plants that have exactly the same genome can look like very different specimens if planted at different altitudes. In the same way, if you had grown up on a planet with lower gravity or one that was more distant from the sun and had a lower oxygen concentration, you might be incredibly tall, or short, or weedy, or blind...or maybe you'd have a supersized brain. If you took your African ape genome and cultured it on yet another planet, maybe the resulting you would have translucent skin. The point is that although we experience ourselves in some sense as finished or perfected, we are not in any way intended. There is no blueprint for what humans are meant to be. And as this moment is merely one moment in the past and future history of our evolutionary lineage, your life right now is merely an instant in the past and future history of the interaction between your genome and your environment.
Christine Kenneally (The First Word: The Search for the Origins of Language)
Reprogramming is what John Gurdon demonstrated in his ground-breaking work when he transferred the nuclei from adult toads into toad eggs. It’s what happened when Keith Campbell and Ian Wilmut cloned Dolly the Sheep by putting the nucleus from a mammary gland cell into an egg. It’s what Yamanaka achieved when he treated somatic cells with four key genes, all of which code for proteins highly expressed naturally during this reprogramming phase. The egg is a wonderful thing, honed through hundreds of millions of years of evolution to be extraordinarily effective at generating vast quantities of epigenetic change, across billions of base-pairs. None of the artificial means of reprogramming cells comes close to the natural process in terms of speed or efficiency. But the egg probably doesn’t quite do everything unaided. At the very least, the pattern of epigenetic modifications in sperm is one that allows the male pronucleus to be reprogrammed relatively easily. The sperm epigenome is primed to be reprogrammed6. Unfortunately, these priming chromatin modifications (and many other features of the sperm nucleus), are missing if an adult nucleus is reprogrammed by transferring it into a fertilised egg. That’s also true when an adult nucleus is reprogrammed by treating it with the four Yamanaka factors to create iPS cells. In both these circumstances, it’s a real challenge to completely reset the epigenome of the adult nucleus. It’s just too big a task. This is probably why so many cloned animals have abnormalities and shortened lifespans. The defects that are seen in these cloned animals are another demonstration that if early epigenetic modifications go wrong, they may stay wrong for life. The abnormal epigenetic modification patterns result in permanently inappropriate gene expression, and long-term ill-health.
Nessa Carey (The Epigenetics Revolution: How Modern Biology is Rewriting our Understanding of Genetics, Disease and Inheritance)
The fact that it took so many attempts to achieve success is not unusual with cloning, and that raises ethical questions about cloning extinct animals. Because of complications in development, lots of embryos are sacrificed in the cloning process. Many that grow into fetuses die soon after birth. Congenital diseases are common in clones, so they may suffer fatal complications before they leave the lab. Nobody knows how many lives or potential lives will be lost in the attempt to clone extinct species until these techniques are perfected for it. Pushing ahead with de-extinction by cloning inherently means taking risks.
Britt Wray (Rise of the Necrofauna: A Provocative Look at the Science, Ethics, and Risks of De-Extinction)
Shmi tried to smile at him. She whispered, “I love…” and went horribly, finally still. Anakin stared at her numbly. After a moment, he reached over and closed her eyes. The Tusken Raiders did this. Animals, Cliegg called them—they’re worse than animals. They’re…they’re…vicious, mind less, murdering things. I’ll show them! I’ll get them all! Oh, Mom.
Patricia C. Wrede (Star Wars: Prequel Trilogy: Collecting The Phantom Menace, Attack of the Clones, and Revenge of the Sith (Disney Junior Novel (eBook)))
It seems to be characteristic of the human mind that when it sees a black box in action, it imagines that the contents of the box are simple. A happy example is seen in the comic strip <>. Calvin is always jumping in a box with his stuffed tiger, Hobbes, and travelling back in time, or <> himself into animal shapes, or using it as a <> and making clones of him-self. A little boy like Calvin easily imagines that a box can fly like an airplane (or something), because Calvin doesn't know how airplanes work. In some ways, grown-up scientists are just as prone to wishful thinking as little boys like Calvin. For example, centuries ago it was thought that insects and other small animals arose directly fom spoiled food. This was easy to believe, because small animals were thought to be very simple (before the invention of the microscope, naturalists thought that insects had no internal organs). But as biology progressed and careful experiments showed that protected food did not breed life, the theory of spontaneous generation retreated to the limits beyond which science detect what was really happening. (...) The key to persuading people was the portrayal of the cells as <>. One of the chief advocates of the spontaneous generation during the middle of the nineteenth century was Ernst Haeckel, a great admirer of Darwin and an eager popularizer of Darwin's theory. From the limited view of cells that microscope provided, Haeckel believed that a cell was a <> not much different from a piece of microscopic Jell-O. So it seemed to Haeckel that such simple life, with no internal organs, could be produced easily from inanimate material. Now, of course, we know better.
Michael J. Behe (Darwin's Black Box: The Biochemical Challenge to Evolution)
It seems to be characteristic of the human mind that when it sees a black box in action, it imagines that the contents of the box are simple. A happy example is seen in the comic strip "Calvin and Hobbes". Calvin is always jumping in a box with his stuffed tiger, Hobbes, and travelling back in time, or "transmogrifying" himself into animal shapes, or using it as a "duplicator" and making clones of him-self. A little boy like Calvin easily imagines that a box can fly like an airplane (or something), because Calvin doesn't know how airplanes work. In some ways, grown-up scientists are just as prone to wishful thinking as little boys like Calvin. For example, centuries ago it was thought that insects and other small animals arose directly fom spoiled food. This was easy to believe, because small animals were thought to be very simple (before the invention of the microscope, naturalists thought that insects had no internal organs). But as biology progressed and careful experiments showed that protected food did not breed life, the theory of spontaneous generation retreated to the limits beyond which science detect what was really happening. (...) The key to persuading people was the portrayal of the cells as "simple". One of the chief advocates of the spontaneous generation during the middle of the nineteenth century was Ernst Haeckel, a great admirer of Darwin and an eager popularizer of Darwin's theory. From the limited view of cells that microscope provided, Haeckel believed that a cell was a "simple lump of albuminous combination of carbon" not much different from a piece of microscopic Jell-O. So it seemed to Haeckel that such simple life, with no internal organs, could be produced easily from inanimate material. Now, of course, we know better.
Michael J. Behe (Darwin's Black Box: The Biochemical Challenge to Evolution)
Human Cloning: The Least Interesting Application of Cloning Technology One of the most powerful methods of applying life’s machinery involves harnessing biology’s own reproductive mechanisms in the form of cloning. Cloning will be a key technology—not for cloning actual humans but for life-extension purposes, in the form of “therapeutic cloning.” This process creates new tissues with “young” telomere-extended and DNA-corrected cells to replace without surgery defective tissues or organs. All responsible ethicists, including myself, consider human cloning at the present time to be unethical. The reasons, however, for me have little to do with the slippery-slope issues of manipulating human life. Rather, the technology today simply does not yet work reliably. The current technique of fusing a cell nucleus from a donor to an egg cell using an electric spark simply causes a high level of genetic errors.57 This is the primary reason that most of the fetuses created by this method do not make it to term. Even those that do make it have genetic defects. Dolly the Sheep developed an obesity problem in adulthood, and the majority of cloned animals produced thus far have had unpredictable health problems.58
Ray Kurzweil (The Singularity is Near: When Humans Transcend Biology)
The egg made the clone. In the experiments, the scientists extracted a cell from the udder of an adult sheep, and they removed the nucleus from the cell, the nucleus being the storehouse of the cell’s genes. They wanted those adult genes, and they could have taken them from any organ. Every cell in an animal’s body has the same set of genes in it. What distinguishes an udder cell from a pancreatic cell from a skin cell is which of those tens of thousands of genes are active and which are silenced.
Natalie Angier (Woman: An Intimate Geography)
Bacteria simply divide themselves in two when the time seems right, as can many single-celled eukaryotes. Many plants and animals have the ability to reproduce themselves on their own quite comfortably. Even among the species that do reproduce sexually, many can switch over to cloning. If you walk through a stand of hundreds of quaking aspen trees on a Colorado mountainside, you may be walking through a forest of clones, produced not by seeds but by the roots of a single tree that come back up out of the ground to form new saplings. Hermaphrodites, such as sea slugs and earthworms, are equipped with male and female sex organs and can fertilize themselves or mate with another. Some species of lizards are all mothers: in a process called parthenogenesis, they somehow trigger their unfertilized eggs to start developing. Compared with these other ways to reproduce, sex is slow and costly. A hundred parthenogenetic female lizards can produce far more offspring than fifty males and fifty females. In only fifty generations, a single cloning lizard could swamp the descendants of a million sexual ones.
Carl Zimmer (Parasite Rex: Inside the Bizarre World of Nature's Most Dangerous Creatures)