Sympatric And Allopatric Speciation Quotes

#1. People need wild places. Whether or not we think we do, we do. We need to be able to taste grace and know again that we desire it. We need to experience a landscape that is timeless, whose agenda moves at the pace of speciation and glaciers. To be surrounded by a singing, mating, howling commotion of other species, all of which love their lives as much as we do ours, and none of which could possibly care less about us in our place. It reminds us that our plans are small and somewhat absurd. It reminds us why, in those cases in which our plans might influence many future generations, we ought to choose carefully. Looking out on a clean plank of planet earth, we can get shaken right down to the bone by the bronze-eyed possibility of lives that are not our own. #Quote by Barbara Kingsolver

#2. The history of life is more adequately represented by a picture of 'punctuated equilibria' than by the notion of phyletic gradualism. The history of evolution is not one of stately unfolding, but a story of homeostatic equilibria, disturbed only 'rarely' (i.e. rather often in the fullness of time) by rapid and episodic events of speciation. #Quote by Stephen Jay Gould

#3. Why is it that no one is excited? I hear people talking in the laundromat about the end of the world, and they're no more excited than if they were comparing detergents. People talk about the destruction of the ozone layer and the death of all life. They talk about the devastation of the rainforests, about deadly pollution that will be with us for thousands and millions of years, about the disappearance of dozens of species of life every day, about the end of speciation itself. And they seem perfectly calm. #Quote by Daniel Quinn

#4. The process of speciation is completed with the cessation of genetic exchange. #Quote by Peter R. Grant

#5. Many bright people are really in the dark about vegetable life. Biology teachers face kids in classrooms who may not even believe in the metamorphosis of bud to flower to fruit and seed, but rather, some continuum of pansies becoming petunias becoming chrysanthemums; that's the only reality they witness as landscapers come to campuses and city parks and surreptitiously yank out one flower before it fades from its prime, replacing it with another. The same disconnection from natural processes may be at the heart of our country's shift away from believing in evolution. In the past, principles of natural selection and change over time made sense to kids who'd watched it all unfold. Whether or not they knew the terms, farm families understood the processes well enough to imitate them: culling, selecting, and improving their herds and crops. For modern kids who intuitively believe in the spontaneous generation of fruits and vegetables in the produce section, trying to get their minds around the slow speciation of the plant kingdom may be a stretch. #Quote by Barbara Kingsolver

#6. Regardless of one's point of view, it's quite easy to see that Darwinism is not in the same league as the hard sciences. For instance, Darwinists will often compare their theory favorably to Einsteinian physics, claiming that Darwinism is just as well established as general relativity. Yet how many physicists, while arguing for the truth of Einsteinian physics, will claim that general relativity is as well established as Darwin's theory? Zero. #Quote by William A. Dembski

#7. Isolating mechanisms are biological properties of individuals that prevent the interbreeding of populations that are actually or potentially sympatric. #Quote by Ernst Mayr

#8. New mutations don't create new species; they create offspring that are impaired. #Quote by Lynn Margulis

#9. That natural selection can produce changes within a type is disputed by no one, not even the staunchest creationist. But that it can transform one species into another - that, in fact, has never been observed. #Quote by Robert J. Sawyer

#10. If evolution almost always occurs by rapid speciation in small, peripheral isolates, then what should the fossil record look like? We are not likely to detect the event of speciation itself. It happens too fast, in too small a group, isolated too far from the ancestral range ... #Quote by Stephen Jay Gould

#11. Ordinary speciation remains fully adequate to explain the causes and phenomenology of punctuation. #Quote by Stephen Jay Gould

#12. Cultural speciation had been crippling to human moral and spiritual growth. It had hindered freedom of thought, limited our thinking, imprisoned us in the cultures into which we had been born. . . . These cultural mind prisons. . . . Cultural speciation was clearly a barrier to world peace. So long as we continued to attach more importance to our own narrow group membership than to the 'global village' we would propagate prejudice and ignorance. #Quote by Jane Goodall

#13. Even more complex and dangerous than the river itself were the fishes, mammals, and reptiles that inhabited it. Like the rain forest that surrounds and depends upon it, the Amazon river system is a prodigy of speciation and diversity, serving as home to more than three thousand species of freshwater fishes - more than any other river system on earth. Its waters are crowded with creatures of nearly every size, shape, and evolutionary adaptation, from tiny neon tetras to thousand-pound manatees to pink freshwater boto dolphins to stingrays to armor-plated catfishes to bullsharks. By comparison, the entire Missouri and Mississippi river system that drains much of North America has only about 375 fish #Quote by Candice Millard

#14. The issue, as correctly emphasized by Carl Sagan, is the probability of the evolution of high intelligence and an electronic civilization on an inhabited world. Once we have life (and almost surely it will be very different from life on Earth), what is the probability of its developing a lineage with high intelligence? On Earth, among millions of lineages of organisms and perhaps 50 billion speciation events, only one led to high intelligence; this makes me believe in its utter improbability. #Quote by Ernst Mayr

#15. I did not claim that speciation occurs only in founder populations. #Quote by Ernst Mayr

#16. Owning your own racing ship wasn't even wealth. It was like speciation. It was conspicuous consumption befitting ancient Earth royalty, a pharaoh's pyramid with a reaction drive. #Quote by James S.A. Corey