| 41. | Marked variations within a species are not uncommon; brain size varies within living humans by abut 15 percent.
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| 42. | There is so much variation in brain size that we all overlap in brain size with other population groups,
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| 43. | There is so much variation in brain size that we all overlap in brain size with other population groups,
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| 44. | They sported a very small brain size in proportion to their body, second only to the Saurischian sauropods.
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| 45. | That implies that these larger animals could be significantly cleverer for a relatively small percentage increase in brain size.
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| 46. | Indeed, they consider the dinosaur's brain size decisive evidence that it had what it took to fly.
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| 47. | Cro-Magnon man, scientists say, was a lot like us, in brain size and other ways.
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| 48. | Allometric analysis indicates that mammalian brain size scales at approximately the T ! or ?exponent of the body mass.
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| 49. | Thus, the percentage of gray matter appears to be more related to brain size than it is to sex.
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| 50. | Humans appear to differ from chimpanzees in the ways we think more than we differ in brain size or speed.
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