Francisco Marquez / Greater flamingo (Phoenicopterus ruber) flock silhouetted in wetland, Fuente de Piedra lagoon, Malaga, Spain. August.

Nick Hawkins / Head of a North Atlantic right whale (Eubalaena glacialis) showing callosities, patches of roughened skin that are unique to each whale. Gulf of Saint Lawrence, Canada. IUCN Status: Endangered. August

SCOTLAND: The Big Picture / Grey seal (Halichoerus grypus) using freshwater pools along the shore line and in the adjacent fields as place to learn to swim, Orkney, Scotland, UK, April.

Floris van Breugel / Monarch butterflies (Danaus plexippus) over winter on Eucalyptus and Monterey Cypress trees near Pismo Beach, San Luis, California, USA December.. When temperatures warm up enough, they will embark on...

Martin Camm / Carwardine / Illustration of Killer Whale / Orca / Sea Wolf / Blackfish (Orcinus orca) male, Delphinidae; the largest member of the dolphin family. There are up to five distinct killer whale types, some populatio...

Fabio Pupin / Dalmatian wall lizard, (Podarcis melisellensis), fight between two males with distinct morphs, Croatia, April . Non-ex.

Nick Hawkins / Head of a North Atlantic right whale (Eubalaena glacialis) showing callosities, patches of roughened skin that are unique to each whale. Gulf of Saint Lawrence, Canada. Endangered. July

SCOTLAND: The Big Picture / Puffin (Fratercula arctica) looking out towards Stack Lee from the island of Boreray, St Kilda, SCotland, UK, May.

SCOTLAND: The Big Picture / Grey seal (Halichoerus grypus) resting on a beach on the Island of Mingulay. Scotland, May.

SCOTLAND: The Big Picture / Young Grey seal (Halichoerus grypus) resting on a beach on the Island of Mingulay, Scotland, UK, May.

SCOTLAND: The Big Picture / Two adult bull Grey seals (Halichoerus grypus) fighting in the surf on a beach, Scotland, UK. May.

SCOTLAND: The Big Picture / Grey seal (Halichoerus grypus) pup resting on the sand on the island of Mingulay, Scotland, UK, May.