An artist’s impression depicts Kryoryctes at Dinosaur Cove in Australia. New research supports the hypothesis that Kryoryctes is a common ancestor of both the platypus and echidna. - Peter Schouten ...

The story of two of the strangest animals on the planet just got a little stranger, thanks to clues revealed by a lone fossil specimen that scientists now say represents a long-extinct ancestor. The ...

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

(CNN) — The story of two of the strangest animals on the planet just got a little stranger, thanks to clues revealed by a lone fossil specimen that scientists now say represents a long-extinct ...

Salem nature photographer and content creator Brian Stone was salmon fishing alone Sept. 17 near Newport when he met one of the ocean’s strangest animals: an ocean sunfish. With the boat’s engine ...

Preface : Lost in near time -- Big -- "This sudden dying out" -- The world before us -- The hominin diaspora -- Explaining near time extinctions : first attempts -- Paul Martin and the planet of doom ...