When Bald Eagles pair up, they take the plunge—literally—locking talons high in the air and tumbling toward the ground, ...

The sex of many turtles, crocodilians, and other reptiles is determined by the temperature at which their eggs incubate.

The monogamy rate in humans may be higher than you expected... but we do it in a strange way compared to other animals.

Male bonobos have an impressive ability to detect when females are most fertile, even though the usual visual cues are ...

From matriarchs who guide entire herds to queens that dominate their hives, the animal kingdom is full of powerful females ...