Jordi Chias / Spotted catshark (Scyliorhinus canicula) just hatched from egg case that is on Seafan (Paramuricea clavata), Ullastres seamount, Costa Brava, Llafranch, Catalunya, Spain

Sue Daly / Smallspotted catshark (Scyliorhinus canicula) Isle of Man, July.

Sue Daly / Small-spotted catshark (Scyliorhinus canicula) , Mid shot, resting on the seabed, Sark, British Channel Islands, UK, July.

Sue Daly / Small-spotted catshark (Scyliorhinus canicula) swimming away, Sark, British Channel Islands, UK, July.

SCOTLAND: The Big Picture / Small spotted catshark (Scyliorhinus canicula) on a maerl bed, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, August.

SCOTLAND: The Big Picture / Lesser spotted catshark / Dogfish shark (Scyliorhinus canicula) on a maerl bed in no take zone, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, August.

SCOTLAND: The Big Picture / Lesser spotted catshark / Dogfish shark (Scyliorhinus canicula) on a maerl bed in no take zone, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, Augus

SCOTLAND: The Big Picture / Lesser spotted catshark / Dogfish shark (Scyliorhinus canicula) amongst seaweed on a maerl bed, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, August.

SCOTLAND: The Big Picture / Lesser spotted catshark / Dogfish shark (Scyliorhinus canicula) on a maerl bed in no take zone, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, August.

Graham Eaton / Common / Lesser-spotted Dogfish (Scyliorhinus canicula) lying on the sea bed, Cardigan Bay, Wales, UK August

Pete Oxford / Catfish, various species, for sale at market in Georgetown, Guyana, South America

Jordi Chias / Lesser-spotted dogfish (Scyliorhinus canicula) swimming in open sea, Spain, Mediterranean Sea