Human childbirth is commonly viewed as uniquely difficult and dangerous. The reason: The combination of bipedalism and large brains creates a tight fit between the baby and the birth canal. Research ...

In some wild or non-medicalized populations, the numbers are sobering. The analysis notes that deer and antelope can show rates of birth complications and female mortality similar to those seen in ...

That includes humans, many monkeys, ungulates such as deer and antelope, and elephants. In these animals, a large fetus can improve survival after birth, but it also raises the odds of a dangerous ...