Species Quotes
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Another way to test hypotheses about adaptation is to consider trait variation across a group of species instead of focusing on the trait of a single species. Rather than seeking to explain why polar bears have fur of a certain thickness, one tries to explain why bears in colder climates have thicker fur than bears in warmer climates. The former problem is hard to solve, since it is hard to say exactly what fur thickness polar bears should have if natural selection guided the evolution of that trait.
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I think the world is growing more psychedelic every day. I'm completely hopeful. . . . This is how it should be. This is what it's like when a species prepares to depart for hyperspace.
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Evolutionary biologists often appeal to parsimony when they seek to explain why organisms "match" with respect to a given trait. For example, why do almost all the organisms that are alive today on our planet use the same genetic code? If they share a common ancestor, the code could have evolved just once and then been inherited from the most recent common ancestor that present organisms share. On the other hand, if organisms in different species share no common ancestors, the code must have evolved repeatedly.
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We may smile and the dog may wag the tail, but in essence, we have a set program and those programs are similar across individuals in the species.
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We are the most dangerous species of life on the planet, and every other species, even the earth itself, has cause to fear our power to exterminate. But we are also the only species which, when it chooses to do so, will go to great effort to save what it might destroy.
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I just think, as a species, what we people enjoy most is creation and creativity, and telling stories is an extension of expressing all the thoughts and ideas that we have inside of ourselves.
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Those who consume animals not only harm those animals and endanger themselves, but they also threaten the well-being of other humans who currently or will later inhabit the planet. ... It is time for humans to remove their heads from the sand and recognize the risk to themselves that can arise from their maltreatment of other species.
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We're dead as a species if we don't tell stories, because then we don't know who we are.
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Mr. Darwin refers to the multitude of the individual of every species, which, from one cause or another, perish either before, or soon after attaining maturity.
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Most writers - poets in especial - prefer having it understood that they compose by a species of fine frenzy - an ecstatic intuition - and would positively shudder at letting the public take a peep behind the scenes.
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I'm sure it has to be a species distinct from us. There is speculation that it could be a diseased human, but this is nothing like that.
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In pain there is as much wisdom as in pleasure: like the latter it is one of the best self preservatives of a species.
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A species consists of a group of populations which replace each other geographically or ecologically and of which the neighboring ones integrate or hybridise wherever they are in contact or which are potentially capable of doing so with one or more of the populations in those cases where contact is prevented by geographical or ecological barriers.
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It is the hope of those who work toward the breakout from planet Earth that the establishment of permanent, self-sustaining colonies of humans off-Earth will ... make human life forever unkillable, removing it from the endangered species list, where it now stands on a fragile Earth overarmed with nuclear weapons. Second, the opening of virtually unlimited new land areas in space will reduce territorial pressures and therefore diminish warfare on Earth itself.
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Bonobos don't really have that darker side. So that's where they could really help us is how could it be that a species that has a brain a third of the size of ours can do something that with all our technological prowess we can't accomplish? Which is to not kill each other.
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Words are acoustical signs for concepts; concepts, however, are more or less definite image signs for often recurring and associated sensations, for groups of sensations. To understand one another, it is not enough that one use the same words; one also has to use the same words for the same species of inner experiences; in the end one has to have one's experiences in common.
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I am principled against this kind of traffic in the human species . . . and to disperse the families I have an aversion.
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Spraying to kill trees and and raspberry bushes after a clear-cut merely looks unaesthetic for a short time, but tree plantations are deliberate ecodeath. Yet, tree planting is often pictorially advertised on television and in national magazines by focusing on cupped caring hands around a seedling. But forests do not need this godlike interference... Planting tree plantations is permanent deforestation... The extensive planting of just one exotic species removes thousands of native species.
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Humans are the one species the world could do very well without.
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I hold flesh-food to be unsuited to our species. We err in copying the lower animal world if we are superior to it.
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In reality, those who deny climate change and demand a halt to emissions reduction and mitigation work, want us to take a huge gamble with the future of every human being on the planet, every future human being, our children and grand children, and every other living species.
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Mathematical objects are determined by - and understood by - the network of relationships they enjoy with all the other objects of their species.
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The only difference between man and man all the world over is one of degree, and not of kind, even as there is between trees of the same species. Where in is the cause for anger, envy or discrimination?
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We need to emphasize the more positive aspects of our species.
