Sue Daly / Anemone hermit crab (Pagurus prideaux) getting into a shell, with a Cloak anemone (Adamsia palliata), Sark, British Channel Islands, UK, June.

Ann & Steve Toon / Kelp (Cape) gulls (Larus dominicanus) feeding on Cape fur seal carcass, Western Cape, South Africa.

David Woodfall / Manequin with high quality woollen cape, made from tweed from local machair grazing sheep. Scotland, UK, July.

Philippe Clement / Blue Cloak Colorado white-fir (Abies concolor), native to western North America, April

Sue Daly / Hermit crab (Pagurus prideaux) and Cloak anemone (Adamsia carciniopados), Trondheimsfjord, Norway, July.

Sue Daly / Anemone hermit crab (Pagurus prideaux) attacking another, with Cloak anemones (Adamsia palliata) covering both their shells, Sark, British Channel Islands, UK, October.

Sue Daly / Anemone hermit crab (Pagurus prideaux) sifting gravel on the seabed for food, with a Cloak anemone (Adamsia palliata) covering its shell, Sark, British Channel Islands, UK, October.

Ingo Arndt / Camberwell beauty / Mourning cloak butterfly (Nymphalis antiopa) on wood, Germany

Ingo Arndt / Camberwell beauty / Mourning cloak butterfly (Nymphalis antiopa) on wood, Germany

Ingo Arndt / Camberwell beauty / Mourning cloak butterfly (Nymphalis antiopa) on wood, Germany

SCOTLAND: The Big Picture / Hermit crab (Pagurus prideauxi) with Cloak anemone (Adamsia palliata) on shell, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, August.

Eric Baccega / Nenet herder holding arctic hare (Lepus timidus) caught in the tundra. Yar-Sale district. Yamal, Northwest Siberia, Russia. April 2016.