Espen Bergersen / Aerial shot of a large group of Humpback whales (Megaptera novaeangliae), Troms, Norway, January.

Doug Perrine / Humpback whale (Megaptera novaeangliae) lone female playing, blowing bubble stream, Kona, Hawaii, USA.

Martha Holmes / Bowhead whale releasing breathing out underwater {Balaena mysticetus} Arctic

DOC WHITE / Northern elephant seal underwater breathing out at sea surface, off Mexico, Central America

Sergio Hanquet / Bryde's whale (Balaenoptera brydei) blowing, exhaling water and air from blowhole, in coastal waters. Tenerife, Canary Islands.

Sergio Hanquet / Bryde's whale (Balaenoptera brydei) blowing, exhaling air and water spray from blowhole. Tenerife, Canary Islands.

Sergio Hanquet / Bryde's whale (Balaenoptera brydei) blowing, exhaling air and water spray from blowhole. Tenerife, Canary Islands.

Sergio Hanquet / Bryde's whale (Balaenoptera brydei) blowing, exhaling air and spray from blowhole in coastal waters. Montana de Guaza, Tenerife, Canary Islands.

Oscar Dewhurst / Red deer (Cervus elaphus) stag in misty conditions bellowing whilst sat down in long grass with the rising sun in the background. Richmond Park, London, UK. September

Piotr Naskrecki / African Lungfish (Protopterus annectens) breathing, Gorongosa National Park, Mozambique

Tony Heald / Southern elephant seal (Mirounga leonina), male exhaling in water. St Andrews Bay, South Georgia. October.

Frederique Olivier / Close up of a Hippopotamus (Hippopotamus amphibius) in a pool, blows out through its nose, Serengeti NP, Tanzania.