Frederique Olivier / South polar skua (Stercorarius maccormicki) chick at nest site feeding from a piece of eggshell, Antarctica.

Frederique Olivier / South polar skua (Stercorarius maccormicki) chicks at nest site, feeding, with parent in the foreground, Antarctica.

Frederique Olivier / Wilson's storm petrel (Oceanites oceanicus) perched on a rock vocalising, Antarctica.

Frederique Olivier / Wide shot of Wilson's storm petrels (Oceanites oceanicus) flying around a nesting site amongst rocks, Antarctica.

Frederique Olivier / Snow petrels (Pagodroma nivea) squabbling and interacting, Antarctica.

Frederique Olivier / Snow petrel (Pagodroma nivea) looking around, vocalising, Antarctica.

Sue Daly / Common lobster (Homarus gammarus) feeding from a shell, Sark, British Channel Islands, UK, September.

Sue Daly / Common lobster (Homarus gammarus) emerging from a hole at night, Sark, British Channel Islands, UK, September.

Sue Daly / Common lobster (Homarus gammarus) returning to its hole at night, Sark, British Channel Islands, UK, September.

John Waters / Common frog (Rana temporaria) underwater in a pond, with spawn, Somerset, England, UK, March.

John Waters / Underwater view of Common frogs (Rana temporaria) in amplexus, with spawn, Somerset, England, UK, March.

John Waters / Common frogs (Rana temporaria) in a garden pond, with floating spawn, Somerset, England, UK, March.