Sylvain Cordier / Monarch butterfly (Danaus plexippus) wintering in Oyamel pine forests (Abies religiosa) Monarch Butterfly Biosphere Reserve / Reserva de Biosfera de la Mariposa Monarca UNESCO World Heritage Site, An...

Sergio Hanquet / Arrow crab (Sternorhynchus lanceolatus). Tenerife, Canary Islands.

Heather Angel / Honey bee (Apis mellifera) forages on pollen in Apple (Malus domestica) flower, collecting pollen in pollen basket. In garden, Surrey, England, UK. May.

Nigel Cattlin / Insect / invertebrate house / bug hotel with various refuge options for hiding / over-wintering, WWT, West Sussex, UK, July.

David Fleetham / Bubble coral shrimp (Vir philippinensis) on Bubble coral (Plerogyra sp), Philippines.

Nick Upton / Common prawns (Palaemon serratus) and a Rock goby (Gobius paganellus) feeding on a dead Montagu's crab (Xantho hydrophilus) in a rockpool, Cornwall, England, UK, September.

Nick Upton / Rock goby (Gobius paganellus) stealing food from a scavenging Common prawn (Palaemon serratus) in a rockpool, Cornwall, England, UK, September.

Sue Daly / Common lobster (Homarus gammarus) shovelling gravel out of a hole, Sark, British Channel Islands, UK, August.

Sue Daly / Long legged spider crab (Macropodia) walking across the seabed, Sark, British Channel Islands, UK, June.

Ammonite / Close up of a Common snail (Cornu aspersum) moving, with Woodlice (Oniscidea). Controlled conditions.

David Shale / Pram bug (Phronima) swimming, Mid-Atlantic Ridge. Deep sea species.

Ingo Arndt / Christmas Island Red Crab (Gecarcoidea natalis) blurred view of vast number of individuals moving along their annual migration route, Christmas Island, Indian Ocean, Australian Territory