Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years crossing a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla). dominant male silverback 'Makumba' aged 32 years, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic, December 2011

Anup Shah / Forest elephant herd (Loxodonta cyclotis) drinking and wallowing in a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic

Inaki Relanzon / Leaf nosed twig snake (Langaha madagascariensis) male, Baie de Baly National Park, North west Madagascar.

Inaki Relanzon / Ploughshare / Angonoka tortoise (Geochelone yniphora), one of the most endangered turtles in the world, Baie de Baly National Park, North west Madagascar.

Michel Poinsignon / Sedge warbler (Acrocephalus schoenobaenus) adult singing in reedbed. Baie de Somme. France. April

Fabrice Cahez / Sanderling (Calidris alba) feeding on worm, Baie de Morlaix, Brittany, France, October.

Fabrice Cahez / Sanderling (Calidris alba) flock in flight, Baie de Morlaix, Brittany, France, October.

Fabrice Cahez / Sanderling (Calidris alba) Baie de Morlaix, Brittany, France, October.

Fabrice Cahez / Ruddy turnstone (Arenaria interpres) on shore, Baie de Morlaix, Brittany, France, October.

Fabrice Cahez / Little ringed plover (Charadrius dubius) flock in flight, Baie de Morlaix, France

Fabrice Cahez / Little ringed plover (Charadrius dubius) flock in flight, Baie de Morlaix, France