Evolutionarily speaking, the ultimate goal of a lifeform is to reproduce and stave off extinction. Many plants and animals ...

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 ...

Discover the bizarre facts and fiction about the Virginia opossum's incredible symmetrical reproductive system.

Lizards have the amazing ability to regenerate their lost tails. So why might they regrow two? Read here to learn more!

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

Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh ...

‘Le Petit Mort’ or ‘the little death’ is the euphamistic term for orgasm. But for some animals, sex and death are more ...