A controversial idea suggests the ancestors of echidnas were more like the platypus. For the first time, fossil evidence ...

A small bone found 30 years ago at Dinosaur Cove in southeastern Australia could turn what we know about the evolution of echidnas and platypuses on its head.

A fisherman reeled in a strange-looking sea creature with hairy claws from an Oregon river, wildlife officials said. It ended up being an invasive species. The Chinese mitten crab was caught April 22 ...

Close your eyes and imagine stepping into a British garden where wildflowers sway with the breeze, bees buzz in dappled ...

Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same ...