When you buy through links on our articles, Future and its syndication partners may earn a commission. Echidnas may have evolved from a water-dwelling ancestor in an unusual evolutionary event, ...

If you’ve always thought echidnas and platypuses were distant cousins who went their separate ways on land and water, think again. A single fossilized arm bone, found in a remote corner of ...

A nearly gapless genome sequence of the echidna, an egg-laying mammal with multiple sex chromosomes, helps researchers to track genomic reorganization events that gave rise to a highly unusual sex ...

New analysis of a 100-million-year-old fossil embedded in a rocky cove in Australia suggests echidnas may have evolved from swimming ancestors. That's basically unheard of: While there are many ...

Jars of tiny platypus and echidna specimens, collected in the late 1800s by the scientist William Caldwell, have been discovered in the stores of Cambridge's University Museum of Zoology. Jars of tiny ...

Jillian (she/her) is a writer for the Movies & TV section at GameRant. She's always loved writing and been a voracious consumer of all kinds of media, so writing for GameRant has been the perfect ...

These days, mammals can use their forelimbs to swim, jump, fly, climb, dig and just about everything in between, but the question of how all that diversity evolved has remained a vexing one for ...