Modern Apes May Be Smarter Than Our Australopithecus Ancestors
Four million years ago our ancestors had brains larger than modern apes, but they were probably less intelligent than gorillas or chimpanzees new research indicates. When attempting to estimate the intelligence of extinct species anthropologists have relied on measuring brain case size. Bigger brains are assumed to mean greater thinking power, a theory that generally holds up today after some allowance for body size, at least among mammals. However, Professor Roger Seymour of the University of Adelaide has called that into question. He argues energy consumption, not size, is what…
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