The artists behind 'Zootopia 2' created new worlds in the animated sequel with extensive research and a lot of discussion.

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Bonds between same-sex individuals help apes and monkeys to manage conflict and strengthen alliances, especially in dry ...

At first glance, it looks like the start of a human pregnancy: A ball-shaped embryo presses into the lining of the uterus ...

A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...