Scientists have long thought humans have a uniquely difficult birth compared to other primates.And it's true that from an evolutionary perspective, we face an obstetrical dilemma. As we evolved to ...

For decades, one idea has shaped discussions about human evolution and birth: humans endure unusually difficult childbirth ...

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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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Twins are uncommon in human history. Tesla Monson Our recent research suggests that twins were actually the norm much further back ...

Two new exceptionally rare babies are ready for double trouble at a Florida zoo after their landmark birth earlier this year. Luna, the matriarch of a cotton-top tamarin troop gave birth to twins in ...

LAMONT, Fla. (WCTV) - The North Florida Wildlife Center is welcoming the birth of a baby ring-tailed lemur and a cotton-topped tamarin. According to the Executive Director of North Florida Wildlife ...

BALTIMORE, MD. (WHTM) — The Maryland Zoo announced earlier today the birth of a primate called a Corquerel’s Sifaka. The Maryland Zoo says the newly born female Sifaka baby weighs about four ounces ...

Twins have been rare in human history and for that reason can seem special. Many cultures associate twins with health and vitality, while others see them as a philosophical reminder of the duality of ...