Not sure whether your leopard gecko is male or female? Thankfully, determining the sex of one of the adorable little lizards is fairly easy and straightforward once they reach a certain age and size.

While it’s a known fact that female guppies prefer orange and unusual patterns on their male partners, the team found that ...

Before bringing a pet rabbit home, have you considered whether you want a male or a female? Surprisingly, male and female ...

Titus was just 4 years old when poachers killed his father and several other close adults in his group. Despite the violence, the young mountain gorilla developed an approach to leadership ...

Overcoming male resistance as a voice for equality, she was the first woman to enter the New York City Marathon and the first official female winner of the Boston race.

Researchers have found that clear-cut male dominance is rare in primates, with both sexes capable of reigning supreme ...