Comparatively, we have very large brains. Larger mammals—like whales—do not necessarily have larger brains relative to their size. But even the differences between humans and chimpanzees—our closest evolutionary cousin—are quite notable.
A new study examines where, in our genome, our physiology is designed to develop bigger brains. Katie Pollard studies human and chimp DNA with the University of California in San Francisco. She comments that “We have very little scientific information about the actual functions of those regions,” so...
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