Discover more about the egg-laying monotremes of Oceania and the ancient traits they still carry.

A large international study reveals that mammals tend to live longer when reproduction is suppressed. On average, lifespan ...

Platypuses are so weird scientists sliced them open because they thought they were fake. But why? Male platypus have ven ...

Kākāpō ( Strigops habroptilus) are large, flightless, nocturnal parrots with mottled green and yellow plumage that only breed ...

Monotremes are unique mammals that lay eggs, but their limited geographic ranges make them vulnerable. We explain why.

Owls are some of the best-known birds in the world, famous for their hooting calls and their excellent eyesight. There are ...

Big Bear’s famous bald eagles Jackie and Shadow are renovating their nest, signaling a new clutch of eggs could arrive soon.

Despite being mammals, these remarkably cancer-resistant animals share a lot in common with cold-blooded species.

Boulenger’s backpack frog uses one of the strangest reproductive strategies in the amphibian world. Females carry fertilized eggs in a sealed pouch on their backs, protecting them from predators and ...

An underwater filmmaker was lucky enough to come across a brittle star at the precise moment it was spawning on the Great Barrier Reef, Australia. When Chilean wildlife cinematographer Daniela Rakos ...