Loic Poidevin / Salmon landing on head of Grizzly bear (Ursus arctos horribilis) as it is leaping up rapids, Katmai National Park, Alaska, USA

Klein & Hubert / Common hedgehog (Erinaceus europaeus) climbing down mossy step, France. Controlled conditions.

Klein & Hubert / Common hedgehog (Erinaceus europaeus) falling down a mossy step, France. Controlled conditions.

Fabrice Cahez / Great egret (Ardea alba) failing to balance on ice, Champagne, France, December

SCOTLAND: The Big Picture / Ptarmigan (Lagopus mutus) male at edge of semi frozen stream, Cairngorms National Park, Scotland, UK, February.

SCOTLAND: The Big Picture / Ptarmigan (Lagopus mutus) male jumping across semi frozen stream, Cairngorms National Park, Scotland, UK, February.

SCOTLAND: The Big Picture / Ptarmigan (Lagopus mutus) male sitting after slipping and landing on ice, Cairngorms National Park, Scotland, UK, February.

Markus Varesvuo / Long-tailed Duck (Clangula hyemalis) female slipping over on ice after landing. Finland, January. Magic Moments book plate, page 101.

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) slipping while carrying a stone for his nest, Antarctica

Klein & Hubert / Chinstrap penguin (Pygoscelis antarcticus) slipping while carrying a stone for his nest, Antarctica

George Sanker / White-tailed Deer (Odocoileus virginianus) sliding on ice. Acadia National Park, Maine, USA.

Denis-Huot / Young male impala (Aepyceros melampus) stuck neck-deep in mud, Masai-Mara game reserve, Kenya. March.

Wild Wonders of Europe / Geslin / Grey seal (Halichoerus grypus) pup trying to get through fence, breeding site, Donna Nook, Lincolnshire, UK, November 2008

Yves Lanceau / Dog, Labrador Retriever, three yellow puppies playing with plastic container, 10 weeks

Klein & Hubert / Boer goat (Capra aegagrus hircus) head portrait of kid looking through wooden fence, Germany.

Bertie Gregory / Red fox (Vulpes vulpes) on frozen pond, licking the ice for water, UK, February 2012

John Cancalosi / Chocolate labrador retriever after encounter with Porcupine, USA.

Markus Varesvuo / Cormorant (Phalacrocorax carbo) with caught fish in beak, Hungary January

Markus Varesvuo / Cormorant (Phalacrocorax carbo) swallowing perch prey, Hungary, January

Visuals Unlimited / Rothchild's Giraffe (Giraffa camelopardalis rothschildi) trying to remove thorn from tongue, Kenya, East Africa.

Lou Coetzer / African darter (Anhinga rufa) choking on a fish, Chobe River, Botswana, November

Ben Lascelles / Eastern Chipmunk (Tamias striatus) with Peanut in mouth pouch, Algonquin Provincial Park, Ontario, Canada. October

Wim van den Heever / Two Whooper swans (Cygnus cygnus) taking off from frozen lake, Kussharo, Hokkaido, Japan.

Ernie Janes / Brown pelican (Pelecanus occidentalis) landing on Cormorant (Phalacrocorax auritus) Gulf Coast, Florida, USA, March.

Fabrice Cahez / Eurasian hoopoe (Upupa epops) flying into window, Vosges, France, June.

Pascal Tordeux / Dust from feathers of a bird remained stuck on a window, following the impact of the bird on a glass. France, October

Visuals Unlimited / Common Raccoon (Procyon lotor) juvenile hangingl from branch, USA

Klein & Hubert / Tabby kitten (age two months) hanging from a branch, France.

Yukihiro Fukuda / Japanese squirrel (Sciurus lis) trying to climb up a thin branch after an female in oestrus , Mount Yatsugatake, Nagano Prefecture, Japan, February. Endemic species.

Nature Production / Japanese tree frog (Hyla japonica) dropping off leaf, Japan, sequence 2/3

Hermann Brehm / Young Tigress (Panthera tigris), 22 month, being frightened by a dead leaf. Banghavgarh National Park, India, April.

Willem Kolvoort / Common frog (Rana temporaria) male frog attempts to mate with every object that looks like a female and here he has caught a Barbel (Barbus barbus) and is attempting to mate with it, Holland

Denis-Huot / Lioness (Panthera leo) playing with a lost baby Wildebeest (Connochaetes taurinus), Masai-Mara Game Reserve, Kenya

Roland Seitre / Grand cayman blue iguana (Cyclura lewisi) attacking reflection in mirror, Indianapolis Zoo, Indiana, USA, Endangered species

Jiri Lochman / Jewel beetles (Julodimorpha bakewelli) males attempting to mate with a discarded beer bottle. Females of this species are flightless and considerably larger than the males, hence the attraction what t...

Petra Wegner / Cavalier King Charles Spaniel puppy, tricolour, 9 weeks, biting electrical wire.

Aflo / ic-02602 Young domestic kitten hanging off branch {Felis catus}

Hermann Brehm / Black headed heron {Ardea melanocephala} predating a green snake that has wrapped itself around the heron's beak, head and neck, Kenya

Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) males fighting, one with hind leg over the neck of the other. Masai-Mara game reserve, Kenya.

Carol Walker / Bearded seal (Erignathus barbatus) falling off small piece of ice, Spitsbergen, sequence 2/2