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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Echidnas, dome ...

Echidnas, also known as spiny anteaters, are egg-laying mammals native to Australia and New Guinea. They are characterized by their spiky coat of spines, which helps protect them from predators in ...

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 ...

It appears the shark liked neither its prey's texture nor taste. A team of scientists reported getting a surprise after they witnessed a tiger shark regurgitate a spikey land mammal from down under ...

The long-beaked echidna had not been documented since the 1960s. Biologists have confirmed the existence of a 200-million-year-old species of egg-laying mammal that has been assumed to be extinct.

A trail camera on Clarke Island recorded an echidna for the first time in decades. Photos show the egg-laying mammal once feared locally extinct. Photo from Tasmanian Aboriginal Centre via ...

Researchers tagging marine animals off Australia’s Orpheus Island were shocked when a tiger shark they caught spat up an echidna, a grub-eating monotreme recognizable for its spine-covered body. Known ...