Robert Valentic / Rough-scaled death adder (Acanthophis rugosus) waving tip of tail as a lure to entice prey within striking range. Mount Isa, Queensland Australia.

John Chan / Crenulated fiddler crab (Uca crenulata) waving its major claw at another crab, part of a courtship display, Southern California, USA, June.

Suzi Eszterhas / Giant panda (Ailuropoda melanoleuca) sitting with Bamboo in background. Shenshuping Panda Base, Wolong Nature Reserve, Wenchuan, Sichuan Province, China. Captive.

David Fleetham / Hawaiian pom-pom / boxer crab (Lybia edmondsoni)with anemones (Triactis sp) that it carries around holding with the claws and using them for defense, waving in front of the possible aggressor. An exam...

Eric Baccega / Giant panda cub (Ailuropoda melanoleuca) portrait Yuan Meng, first giant panda ever born in France, age 10 months. Captive at Beauval Zoo, Saint Aignan sur Cher, France

Yashpal Rathore / Kottigehar dancing frog (Micrixalus kottigeharensis) male calling and displaying to attract female by waving foot, Agumbe, Western Ghats, India.

Yashpal Rathore / Kottigehar dancing frog (Micrixalus kottigeharensis) male calling and displaying to attract female by waving foot, Agumbe, Western Ghats, India.

Nick Upton / Blind adult male Grey seal (Halichoerus grypus) 'Marlin' waving a flipper at the edge of a convalescence pool where he is a long-term resident, Cornish Seal Sanctuary, Gweek, Cornwall, UK, January. Mo...

Nick Upton / Adult female Common / Harbour seal (Phoca vitulina) 'Sija' waving a flipper in a pool where she is a long-term resident, Cornish Seal Sanctuary, Gweek, Cornwall, UK, January.

Ole Jorgen Liodden / Polar bear (Ursus maritimus) waving standing on hind legs with paws raised, Svalbard, Norway, September.

Andy Rouse / Red squirrel (Sciurus vulgaris) reaching upwards, UK. Captive.

Andy Trowbridge / Grey Seal (Halichoerus grypus) at rest on submerged rock, head and one flipper above water. Shetland Islands, Scotland, UK. July.