It's tricky business, but there's a lot you can figure out from a human skeleton if you know what you're doing.
In mammals, the sex of a baby is determined by the chromosomes it inherits from its parents. But, the combination an animal inherits can be quite different.
Sure, there are physical differences but outside of mammals, the terms "male" and "female" take on different meanings.
Medically speaking, it's generally known that when it comes to being pregnant and giving birth, younger is better. Learn more on this Moment of Science.
Fly often? If you do, who gets the arm rest? You? Or your neighbor?
Male lactation: Fact of fiction? That’s the question on today’s Moment of Science. In 1979, a scientist concluded that there is no insurmountable physiological reason that men can’t lactate, or produce breast milk. In fact, there are a couple of cases where elderly men who received estrogen to treat prostate cancer were actually induced to […]
There’s a common belief that men can sire children until they die, but that women need to be relatively young to conceive healthy children. But the father’s age affects the child’s health too.