Northern muriquis, which live in the Atlantic forest of Brazil, are one of the most endangered species of monkey in the world. To better understand what goes on in the mating lives of muriquis, ...

The bizarre enlarged nose of male proboscis monkeys acts like a trumpet, enabling them to make extremely loud sounds that attract females and intimidate rivals. Until now, researchers have speculated ...

In polygamous mammals with strong competition, males generally die earlier than females due to battling other males for a ...

From mantises that both eat and mate with their suitors at once to baboon couples that can’t turn off the PDA, these animal mating rituals are both crucial and wildly entertaining. 0:00 - Intro to 13 ...