Inaki Relanzon / Black-browed albatrosses (Thalassarche melanophrys) pair, mutual preening on nest with chick, nesting colony in background, Falkland Islands, Atlantic Ocean. February.

Inaki Relanzon / Ring-tailed lemur (Lemur catta) female carrying infant on her back, portrait, Anja reserve, Madagascar. Endangered.

Franco Banfi / Sperm whale (Physeter macrocephalus) calf swimming close to its mother, Dominica, Caribbean Sea.

Franco Banfi / Sperm whale (Physeter macrocephalus) female with calf, diving, Dominica, Caribbean Sea.

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) female, in flight carrying pup, aged 4-5 weeks. The mother has lost hold of the pup which is just gripping on with its feet, Myuna Wetlands, Doveton, Vi...

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) female, in flight carrying pup, aged 4-5 weeks. The mother has lost hold of the pup which is just gripping on with its feet, Myuna Wetlands, Doveton, Vi...

David Pike / Scottish wildcat (Felis silvestris silvestris) kitten, cautiously peering out from undergrowth. Part of a captive breeding programme, West Country Wildlife Photography Centre, near Launceston, Cornwal...

David Pike / Scottish wildcat (Felis silvestris silvestris) kitten, cautiously emerging from undergrowth. Part of a captive breeding programme, West Country Wildlife Photography Centre, near Launceston, Cornwall,...

Denis-Huot / Three Yellow baboons (Papio cynocephalus) female, sitting on a log mutual grooming, one female holding her infant, Amboseli National Park, Kenya.

Carol Walker / A wild pinto stallion with his foal in grassland, McCullough Peaks, Wyoming, USA. October.

Carol Walker / A wild pinto mare with her blanket appaloosa yearling and buckskin filly, walking over grassland, Lost Creek, Wyoming, USA. August.

Ann & Steve Toon / White rhinoceros (Ceratotherium simum) female and calf at waterhole at night, Zimanga private game reserve, KwaZulu-Natal, South Africa.