Males engage in a two-week-long sex marathon with as many females as they can find. Each frenzied encounter can last up to 14 ...

When female tiger salamanders choose a mate, it turns out that size does matter - tail size that is - and that's not the only factor they weigh. Findings of a Purdue University study show that animals ...

Animals mating with the same sex is a common trait, having evolved so repeatedly in mammals that it is now thought to be helpful for social bonding and reducing conflict. Over 1,500 species of animal ...

The results of inbreeding can be very distressing to witness. In this Instagram post, we see a captive lion with skull ...

A boa constrictor in the U.K. gave birth to 14 babies — without a mate. Is it a miracle? The result of a secret rendezvous? Probably not. Females of species have the ability to reproduce asexually, ...

The animal world is full of fascinating (and, let’s face it, bizarre) mating rituals. You will be shocked at the lengths various species will go to procreate. We will explore some seriously odd ...

New York's Museum of Sex expands into the world of animals. June 28, 2008 — -- Did you ever wonder what a bonobo's orgasm sounds like? Or how barnacles reproduce? Did you know that over 300 ...

Chances are you've tried to hide a runny nose and cough when you're sick at the office or around family members, and a new study finds animals do something similar. Some animals — including song ...