Peter Bassett / Pair of Gentoo penguins (Pygoscelis papua) courting and attempting to mate, Neko Harbour, Andvord Bay, Graham Land, Antarctica.

Brent Stephenson / Humpback whale (Megaptera novaeangliae) surfacing whilst lunge-feeding, showing the extended throat pleats, Neko Harbour, Antarctic Peninsula, Antarctica, January.

Enrique Lopez-Tapia,Enrique Lopez-Tapia / Gentoo penguin (Pygoscelis papua) and Antarctic cruise liner 'MV Ushuaia' in Neko Harbour, Andvord Bay. Antarctic Peninsula, Antarctica

Brent Stephenson / Weddell Seal (Leptonychotes weddellii) with wet fur after hauling onto a beach. Neko Harbour, Antarctic Peninsula, Antarctica, December.

Andy Rouse / Gentoo penguins (Pygoscelis papua) swimming near the shore, Neko Harbour, Antarctica

Peter Bassett / Male Gentoo penguin (Pygoscelis papua) chasing a rival and offering a stone to a nearby female, Neko Harbour, Andvord Bay, Graham Land, Antarctica.

Peter Bassett / Male Gentoo penguin (Pygoscelis papua) offering a stone to a female at nest site, Neko Harbour, Andvord Bay, Graham Land, Antarctica.

Peter Bassett / Gentoo penguins (Pygoscelis papua) squabbling at breeding colony, Neko Harbour, Andvord Bay, Graham Land, Antarctica.

Peter Bassett / Gentoo penguins (Pygoscelis papua) displaying at breeding colony, Neko Harbour, Andvord Bay, Graham Land, Antarctica.

Peter Bassett / Gentoo penguin (Pygoscelis papua) squabbling with neighbouring penguins at nest site in a breeding colony, Neko Harbour, Andvord Bay, Graham Land, Antarctica.

Peter Bassett / Gentoo penguins (Pygoscelis papua) walking close to the edge of an ice shelf with a glacier in the background, Neko Harbour, Andvord Bay, Graham Land, Antarctica.

Peter Bassett / Wide angle shot of a Gentoo penguin (Pygoscelis papua) breeding colony, Neko Harbour, Andvord Bay, Graham Land, Antarctica.