Pete Oxford / Wood carried out of forest by mule, Intag Valley, northwest Ecuador

Pete Oxford / Chagra cowboy on his Domestic Horse (Equus caballus) with a newborn foal at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Chachi Tree Frog (Hyla picturata) pair, Cotacachi-Cayapas Reserve, northwest Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) female carrying nesting material, Genovesa Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Magnificent Frigatebird (Fregata magnificens) coming to land with nesting material, Seymour Island, Galapagos Islands, Ecuador

Mark Moffett / Ecuador Poison Frog (Epipedobates bilinguis) with tadpoles on its back, Napo River, Amazonia, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) juvenile playing with stick, Sombrero Chino Island, Santiago Island, Galapagos Islands, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) egg held by person, Punta Suarez, Espanola Island, Galapagos Islands, Ecuador