Bighorn sheep rams use their massive, spiraling horns in fierce head-butting battles to establish dominance. Their specially adapted horns and skull structure allow them to absorb tremendous impacts without serious injury. [📹 Tony Bynum]

A rare grey peacock-pheasant showing its beautiful spotted tail

Ocean acrobatics

Dolphins surfing waves in crystal clear waters off the coast of Esperance, Western Australia. [📹 Jaimen Hudson]

The territorial call of a leopard is known as "sawing".

Mother deer returns just in time

Cub’s great escape instantly canceled by mom.

A robin, a blue tit, a great tit, and a tree sparrow perch on a snow-covered guelder rose. [📹 RobertEFuller]

Meanwhile, this guy and the kitty he raised

Close encounter with a snow leopard. [📹 Philippe Matteini]