Okay, so newborns are effectively needy hot water bottles. But instead of looking at their helplessness at birth as a negative thing, we should consider the benefits.
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Wouldn’t it be great if there was some infallible trick to calm a crying baby? According to science, there just might be. (Get on your walking shoes.)
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Why is it that some mammals can just leave their babies in a den or nest, while others carry theirs around (or have them cling on) through out the day?
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