Anup Shah / Ostrich yawning, eye shut, beak open {Struthio camelus}, Masai Mara Game Reserve, Kenya

Niall Benvie / Red squirrel (Sciurus vulgaris) balancing on pine tree stump, Norway

Anup Shah / Golden langur {Presbytis geei} sticking its tongue out, India

Richard Du Toit / African elephant sprays itself with mud {Loxodonta africana} Linyanti, Botswana, Southern Africa. The mud-pack, when dry, forms a hard crust that deters insect attacks.

David Kjaer / Two Greylag geese landing at sunset {Anser anser} UK

Eric Baccega / Polar bears play fighting {Ursus maritimus} Churchill, Manitoba, Canada

Pete Oxford / Chinstrap penguin - ecstatic display {Pygoscelis antarctica} South Sandwich Is

Martha Holmes / Emperor penguin flying out of water {Aptenodytes forsteri} Cape Washington, Antarctica. NOT AVAILABLE FOR NORTH AMERICAN GREETINGS CARDS UNTIL 11/01/18

Bengt Lundberg / Pygmy owl peers out of nest hole in tree {Glaucidium passerinum} Sweden

Bengt Lundberg / Red squirrel investigates birdbox. Sequence 3/5. Sweden

Anup Shah / Hamadryas baboons display red bottoms {Papio hamadryas} C

Pete Oxford / Galapagos Giant tortoise portrait {Geochelone elephantopus} Galapagos Is