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Humans are born with tails—but lose them before birth—and scientists still don’t know why we have them at all

Early in pregnancy, something surprising happens. Every human embryo develops a tail. It is not symbolic or imagined. A real ...
EurekAlert!

Birth: It’s a tight squeeze for chimpanzees, too

3D simulation of the birth canal of chimpanzees with (B) the fetal head in a fully extended position, the typical head alignment in apes, and (C) the fetal head in a fully flexed position, the usual ...
EurekAlert!

First map of human limb development reveals unexpected growth processes and explains syndromes found at birth

Human fingers and toes do not grow outward; instead, they form from within a larger foundational bud, as intervening cells recede to reveal the digits beneath. This is among many processes captured ...
Live Science

Scientists debunk myth that human brains are 'underdeveloped' at birth

Newborns' brains may look relatively smaller than those of other primate babies, but it's not because they're "underdeveloped" by comparison. When you purchase through links on our site, we may earn ...
Science Daily

Birth: It's a tight squeeze for chimpanzees, too

According to a new study, chimpanzees, like humans, must contend with a confined bony birth canal when giving birth. In humans, the problem was exacerbated by our unique form of upright walking since ...