Wild Wonders of Europe / Zankl / Loggerhead turtle (Caretta caretta) hatching, Dalyan Delta, Turkey, July 2009

Nick Upton / Mediterranean sea holly / Pyrenean eryngo (Eryngium bourgatii) flowering on montane pastureland, Covadonga, Picos de Europa, Asturias, Spain, August.

David Perpinan / Male Mediterranean tree frog (Hyla meridionalis) calling, showing vocal sac inflating, Barcelona, Spain, May. Filmed at night with an infrared camera.

Stephane Granzotto / Tracking shot of a pod of Euphrosyne dolphins (Stenella coeruleoalba) swimming, Mediterranean Sea, August.

Richard Robinson / Shortfin mako shark (Isurus oxyrinchus) head on just below surface, another in background, off the West Coast of Auckland, New Zealand, February

Richard Robinson / Shortfin mako shark (Isurus oxyrinchus) profile portrait, just below surface, off the West Coast of Auckland, New Zealand, February

Chris & Monique Fallows / Mako shark (Isurus oxyrinchus) with sunrays, Cape Point, South Africa, March.

Chris & Monique Fallows / Mako shark (Isurus oxyrinchus) near surface, Cape Point, South Africa, March 2015

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

Jordi Chias / Angular roughshark (Oxynotus centrina) a deepsea species living at 80-300m depth, caught by fishermen and released, Costa Brava, Catalunya, Spain, Mediterranean Sea

Pascal Kobeh / Long-snouted seahorse (Hippocampus guttulatus) with prehensile tail twined round seagrass, Etang de Thau Lagoons, Languedoc-Roussillon, France.

Franco Banfi / Sea star (Hacelia attenuata) on coral covered with mucilage, a symptom of rising sea temperature, Vis Island, Croatia, Adriatic Sea, Mediterranean.