Anup Shah / Lesser flamingos {Phoeniconaias minor} performing 'wing salute' as part of courtship display, the wings are spread out to the side of the body and held in this position for several seconds, making the...

Kristel Richard / Lady riding a black Menorquin stallion, performing the bot or walking courbette of the Doma Menorquina, during the festival Mare de Deu de Gracia, in Mahon, Menorca, Spain 2012. Tourists are trying t...

Ben Hall / Great crested grebes (Podiceps cristatus) performing their elaborate courtship ritual at dawn, Cheshire, UK November

Ben Hall / Great crested grebes (Podiceps cristatus) performing courtship ritual at dawn, Cheshire, UK April

Ben Hall / Goldeneye duck (Bucephala clangula) drake performing courtship display, Lancashire, UK February

Alex Mustard / Rock beauty angelfish (Holacanthus tricolor) pair at dusk performing their courtship dance with the larger male circling the female, Georgetown, Grand Cayman, Cayman Islands, British West Indies. Cari...

Alex Mustard / Yellowhead wrasse (Halichoeres garnoti) male performing a courtship dance to attract females, East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Ole Jorgen Liodden / Blue-footed Booby (Sula nebouxii) performing courtship display. Galapagos

Ole Jorgen Liodden / King Penguin (Aptenodytes patagonicus) parents calling and performing 'statue' display at colony. South Georgia Island, Southern Ocean, November.

Ole Jorgen Liodden / Blue-footed Booby (Sula nebouxii) performing courtship display. Galapagos

Carol Walker / Spanish / Andalusian stallion performing Alta Escuela moves, rearing up, Andalucia, Spain

Carol Walker / Spanish / Andalusian horse performing Alta Escuela moves, walking through waves on beach, Andalucia, Spain, model released