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.

Fergus Gill / 2020VISION / Chequered skipper (Carterocephalus palaemon) nectaring on a thistle (Cirsium), Glasdrum Wood National Nature Reserve, near Oban, Argyll, Scotland, UK, June.

Christophe Courteau / Common prawn {Palaemon serratus} amongst seaweed Brittany France

Kim Taylor / Common prawn {Palaemon / Leander serratus} newly hatched larva.

Duncan Mcewan / Chequered skipper butterfly. Scotland

Magnus Lundgren / Wild Wonders of China / Larval banded coral shrimp (Stenopus hispidus) at night, Kenting National Park, Hengchun Peninsula, Taiwan

David Fleetham / Yellowmargin moray eel (Gymnothorax flavimarginatus) with a Banded coral shrimp (Stenopus hispidus) inspecting it for parasites, Hawaii.

Bert Willaert / Marbled shrimp (Saron cf. marmoratus) moulting. Bismarck Sea, Vitu Islands, West New Britain, Papua New Guinea

Franco Banfi / Couple of banded boxer shrimp (Stenopus hispidus) Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines

Nick Upton / Spiny starfish (Marthasterias glacialis) squeezing into a crevice in a rockpool as a Common prawn (Palaemon serratus) swims past, Cornwall, England, UK, September.

Nick Upton / Common prawns (Palaemon serratus) scavenging on a damaged Flat top shell (Gibbula umbilicalis) in a rockpool, Cornwall, England, UK, September.