Andy Rouse / African Lion (Panthera leo) female calling at sunrise, Maasai Mara, Kenya, Africa

Bence Mate / Male Black grouse (Tetrao tetrix) rear view, Finland

David Tipling / Red-crowned Cranes (Grus japonensis) displaying at dawn Hokkaido, Japan, February. Did you know? Red crowned cranes mate for life.

Fergus Gill / 2020VISION / Greylag Goose (Anser anser) calling at dawn with steaming breath. Scotland, December.

Ben Hall / Fallow deer (Dama dama) in woodland clearing at dawn, Cheshire, UK November

Terry Whittaker / 2020VISION / Red deer (Cervus elaphus) stag with steaming breath after fight, rutting season, Bushy Park, London, UK, October. Did you know? Red deer antlers are can grow 2.5 cm a day.

Georgette Douwma / Hawksbill Turtle (Eretmochelys imbricata) swimming down after taking a breath. Rinca, Komodo National Park, Indonesia.

Juergen Freund / Dugong (Dugong dugon) surfacing to take a breath of air. Dimakya Island, Palawan, Philippines.

Juergen Freund / Member of West Papuan dive boat crew free-swimming underwater. North Raja Ampat, West Papua, Indonesia, February 2010

Juergen Freund / Guido Westhoff spotlighting the water surface looking for sea snakes surfacing to take a breath. The snakes are being caught as part of a project to discover more about seasnake skin ultrastructure an...

Juergen Freund / Researchers Guido and Katja Westhoff with Little filesnake (Acrochordus granulatus) caught by spotlighting when the snake surfaces to take a breath. Although true sea snakes are venomous, this aquatic...

Fergus Gill / Greylag goose (Anser anser) calling at dawn with its breath showing as a cloud of steam. Serrated tomia (the equivalent of teeth) are visible in its beak. Scotland, Dec .