Four adorable western Santa Cruz Galápagos tortoise babies are now on display at Philadelphia Zoo after their 100-year-old 'Mommy' reproduced for the first time.

A Bay Area wildlife conservation photographer said “all our dreams came true” after he and a friend recently captured a mountain lion with her cubs on a remote ...

Researchers have found proof that Roman gladiators fighting lions is not just fiction, but it actually happened in real life.