An Instagram post about the last two northern white rhinos references a scenario conservationists have warned us about for ...

Rolf Benirschke, former San Diego Chargers placekicker, has been elected chairman of the San Diego Zoo Wildlife Alliance.

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

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

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 ...

Some animals reproduce only once before dying. This life strategy, called semelparity, sees organisms channel all energy into ...

Meet animals that grow for a lifetime, sometimes for centuries, and discover why dinosaurs did not, despite their huge size.

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

Life expectancy across 117 mammals was increased by hormonal contraception and surgical sterilization in new study.

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 ...

BAYAHIBE, Dominican Republic (AP) — Oxygen tank strapped to his back, Michael del Rosario moves his fins delicately as he glides along an underwater nursery just off the Dominican Republic coast, ...

For 35 years, American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia, hoping conservationists never have to use them. But she worries that the ...