Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The stereotypes of ...

Add Yahoo as a preferred source to see more of our stories on Google. Dr. Barbara Natterson-Horowitz, seen at the Los Angeles Zoo, is a UCLA cardiologist and researcher who studies animals to gain ...

We tend to picture female animals as gentle or secondary to the males. Nature tells a different story. In many species, females are the hunters, the leaders, and sometimes the most ruthless ones in ...

Nature is full of wonders, and some of the most amazing surprises come from how animals reproduce. While most of us think that having babies always requires a male and a female, that’s not true for ...

"So many vaginas, such a short life," says one biologist in a raucous new book on the diversity of females in the animal kingdom. The hyena, for example, uses her 8-inch clitoral tube to pee, copulate ...

When I first heard of Oxford-trained zoologist and best-selling author Lucy Cooke's new book, Bitch: On the Female of the Species, I couldn't wait to read it. When I completed it, I realized all of ...

The stereotypes of dominant male and docile female creatures have shaped zoology since the time of Charles Darwin. This interpretation all too often still goes unchallenged today in textbooks and ...

Zainabu was in good health in the days before she gave birth to her fourth baby, despite the fact that her blood pressure was likely somewhere around 280/220. For a human, such a reading would be ...