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

For a small number of animals, reproduction marks a biological endpoint rather than a stage in an ongoing life cycle. Death ...

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 ...

Pollution is one of the biggest problems facing planet Earth, a consequence of poor practices and decisions made by humankind ...

The twins were born to a 22-year-old female named Mafuko, who lost her own mother to armed individuals. The extremely ...

Find out which animals live the longest and what clues this gives us for potentially slowing down human aging.

Returning to the same site to breed confers a risk of inbreeding with relatives, with the consequent genetic liabilities of ...

Black-bulb yam’s mimicry tricks birds into spreading its berrylike clones. The plant's novel strategy helps it spread without ...

Lead shot has been banned for hunting waterfowl like ducks and geese in B.C. since 1995 and in Canada since 1997, something ...

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

A mixture of anxiety and excitement coursed through Keanini Aarona in the weeks before five Hawaiian crows, or ʻalalā, were ...