Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal on a slab of sandstone recovered near Melbourne.

The Philadelphia Zoo welcomed three new additions after a group of male Western Santa Cruz Galapagos tortoises hatched.

NASA’s Perseverance rover has detected the first aurora at Mars that’s visible to the human eye, good news for future astronauts who can savor the view on the red planet. European and U.S.

Tracks in Australia seem to be the earliest known prints of amniotes — a group that includes reptiles, birds and mammals.

In this black and white sketch, we see a leopard comfortably perched upon a tree enjoying his afternoon siesta. Oblivious to ...