Those mothers with hereditary large pelvises were able to b… - Carl Sagan

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Those mothers with hereditary large pelvises were able to bear large-brained babies who because of their superior intelligence were able to compete successfully in adulthood with the smaller-brained offspring of mothers with smaller pelvises.

Carl Sagan

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Brain human-body human-evolution

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About Carl Sagan

Carl Edward Sagan (9 November 1934 – 20 December 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the hypothesis, accepted since, that the high surface temperatures of Venus can be attributed to, and calculated using, the greenhouse effect. He testified to the US Congress in 1985 that the greenhouse effect will change the earth's climate system.

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Also Known As

Native Name: Carl Edward Sagan

Alternative Names: Sagan • Carl E. Sagan • Carl E Sagan • C. E. Sagan • C.E. Sagan • C E Sagan • C. Sagan • C Sagan • Sagan C • Sagan C. • Sagan C. E. • Sagan CE

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Additional quotes by Carl Sagan

But our energies are directed far more toward war. Hypnotized by mutual mistrust, almost never concerned for the species or the planet, the nations prepare for death. And because what we are doing is so horrifying, we tend not to think of it much. But what we do not consider we are unlikely to put right.
Every thinking person fears nuclear war, and every technological state plans for it. Everyone knows it is madness, and every nation has an excuse.

La causa de la miseria humana evitable no suele ser tanto la estupidez como la ignorancia, particularmente la ignorancia de nosotros mismos.

If we long for our planet to be important, there is something we can do about it. We make our world significant by the courage of our questions and by the depth of our answers.

Those mothers with hereditary large pelvises were able to bear large-brained babies who because of their superior intelligence were able to compete s… - Carl Sagan

About Carl Sagan

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