These unusual facts about animal sexuality expose the oddities associated with animal reproduction and sexual habits in ...

Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. Orangutans are a little bit like ...

An orangutan mom doesn’t have a partner to make dinner or put on a dress for—orangutans live mostly alone—but she does handle ...

Scientists once assumed that evolution would eventually force every member of a species to behave in more or less the same ...

It may seem odd to think of aphids producing their offspring while already pregnant, but in actuality, it is not an unusual ...

(Matthias Kulka/The Image Bank/Getty Images) The world is now swimming in so many synthetic chemicals, some scientists think ...

There are sure signs of spring on the Canadian Prairies—snow melting, pelicans splashing down in the South Saskatchewan River ...

The permafrost formation, called Yedoma, kept the rotifer frozen solid at around -20 degrees C for the entire period.

Long-term tracking shows a Burmese python is rewriting assumptions about breeding, giving new intel for Florida's battle ...

Infectious biological agents are significant causes of reproductive disorders and thus are of high research priority in animal industries around the world.

A new study has revealed that saltwater crocodiles born or raised in captivity may not return to their breeding centers after being released into the wild, a discovery that can help inform ...