Danny Green / Northern gannets (Morus bassanus) diving and feeding on fish, Bempton Cliffs, Yorkshire, UK, June.

Danny Green / Northern gannets (Morus bassanus) diving and feeding on fish, Bempton Cliffs, Yorkshire, UK, June.

Konrad Wothe / Bladder wrack (Fucus vesiculosus) in intertidal zone, Atlantic Ocean, Ireland. August.

Doug Perrine / Aerial panoramic view of the northeast coast of Hawaii Island, showing Pololu Valley at left center, the Kohala Forest Reserve stretching off to the left, and Akoakoa Point on the right, North Kohala,...

Doug Perrine / Aerial panorama of sunset over the Pacific Ocean, at Old Kona Airport County Park, Kailua Kona, Hawaii Island, Hawaii, USA, Pacific Ocean. September.

Doug Perrine / A fiery sunset over the Pacific Ocean, as seen from Old Kona Airport County Park, Kailua Kona, Hawaii Island, Hawaii, USA Pacific Ocean. August.

Doug Perrine / The Milky Way rises above Kua Bay, also known as Manini'owali Beach, Kekaha Kai State Park, North Kona, Hawaii Island, Hawaii, USA Pacific Ocean. October.

Mateusz Piesiak / Black-headed gull (Chroicocephalus ridibundus) diving into sea, hunting shellfish, Baltic Sea, Poland. Vogelwarte Photo Competition 2021, Finalist.

Adrian Davies / Small spotted catshark / Dogfish (Scyliorhinus canicula) egg case, Devon, UK.

Adrian Davies / Honeycomb worm (Sabellaria alveolata) reef exposed at low tide, Port Gaverne, Cornwall, UK. May.

Adrian Davies / Honeycomb worm (Sabellaria alveolata) reef exposed at low tide, Port Gaverne, Cornwall, UK. May.

Andy Rouse / RF - Chinstrap penguin (Pygoscelis antarcticus) jumping onto rocks in surf, Antarctic Peninsula. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF - Gentoo penguin (Pygoscelis papua) surfing over calm ocean surface, Atlantic Ocean, Falkland Islands. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF - Gentoo penguin (Pygoscelis papua) surfing on wave, Atlantic Ocean, Falkland Islands. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF - Gentoo penguin (Pygoscelis papua) leaping put of sea preparing to land on beach, Carcass Island, Falkland Islands. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF - Waterfall from inside ice cliffs, Austfonna Polar Ice Cap, Svalbard, Norway, Arctic. September, 2011. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF - Walrus (Odobenus rosmarus) group swimming in ocean, Svalbard, Norway, Arctic. (This image may be licensed either as rights managed or royalty free.)

Guy Edwardes / Sunlight through clouds over Longships lighthouse, Land's End, Cornwall, England, UK. September 2021.

Guy Edwardes / Crown tin mines, Botallack, Cornwall, England, UK. September, 2020.

Guy Edwardes / Mill Bay from Trevilley Cliff, Land's End, Cornwall, England, UK. September, 2020.

George Sanker / Acadian shoreline at sunset, Acadia National Park, Maine, USA.

George Sanker / Rocky Acadian coast at sunset, Acadia National Park, Maine, USA.

Franco Banfi / Algae covered wall underwater , Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Rebreather scuba diver and wall covered with algae, Vis Island, Croatia, Adriatic Sea, Mediterranean

Franco Banfi / Scuba diver with torch over reef with John Dory (Zeus Faber) and Gold coral (Savalia savaglia) and passing shoal of fish in distance, Bishevo wall dive site, Vis Island, Croatia, Adriatic Sea, Mediter...

Franco Banfi / Monkfish / Angler (Lophius piscatorius) swimming over seabed, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Scuba diver with torch over reef with John Dory (Zeus Faber) and Gold coral (Savalia savaglia) and shoal of small fish in distance, Bishevo wall dive site, Vis Island, Croatia, Adriatic Sea, Mediterra...

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler (Lophius piscatorius) camouflaged against seabed with scuba diver in distance, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Triton shell (Charonia variegata) on seabed, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Triton shell (Charonia variegata) on seabed, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Conger eel (Conger conger) in wreck of Teti, sunk in a storm in 1930, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Aerial view of Ravnik Island and Green Cave with tour boats at cave entrance, Croatia, Adriatic Sea, Mediterranean. July, 2020.

Franco Banfi / Hermit crab (Dardanus calidus) Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Flat worm (Prostheceraeus sp.) on coral, rare albino species which inhabits poorly lit environments, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Sea slug (Dondice / Godiva banyulensis) Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Glass shrimp / Cleaner shrimp (Periclimenes scriptus) commensal with Sand anemone (Condylactis aurantiaca) Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Mediterranean fairy basslet (Anthias anthias) Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Mediterranean fairy basslet, (Anthias anthias). Vis Island, Croatia, Adriatic Sea, Mediterranean

Franco Banfi / John Dory (Zeus Faber) Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / John Dory (Zeus Faber) Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Rebreather scuba diver exploring the landing wheel gear from wreck of B24 Liberator airplane, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Scuba diver exploring stern of the Brioni steam passenger / cargo ship, sunk in February 1930 on the south eastern coast of Vis Island, Croatia, Adriatic Sea, Mediterranean. July, 2020.

Franco Banfi / Plane wreck of B17 Bomber Flying Fortress, sank on 6th November 1944, nose of aircraft crushed from impact with seabed, 150m from the Cape of Polivalo on Southern coast of Vis Island, Croatia, Adriati...

Franco Banfi / Scuba diver approaching the engine drive motor with propeller on wreck of B 24 Liberator airplane, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Algae covered wall, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Sperm whale (Physeter macrocephalus) resting near surface with squid tentacle on the mouth. Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) resting near surface, with squid tentacle on the mouth. Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whales (Physeter macrocephalus) female swimming above male, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) male swimming in open water, Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit

Franco Banfi / Sperm whale (Physeter macrocephalus) large male swimming near surface with pod following behind, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) large male swimming near surface with pod following behind, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whales (Physeter macrocephalus) female swimming above male, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whales (Physeter macrocephalus) two whales with heads touching, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) underwater shot of tail fluke of surfacing whale, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) young female 'Digit' with scarring on tail fluke from fishing rope tangled at the base of her fluke, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (I...

Franco Banfi / Sperm whale (Physeter macrocephalus) young female known as Digit with scarring on tail fluke from fishing rope tangled at the base of her fluke, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IU...

Franco Banfi / Sperm whale (Physeter macrocephalus) portrait with open mouth, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) pod socialising viewed from above, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) pod socialising viewed from above, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Bubbles surfacing from Sperm whale (Physeter macrocephalus) down deep, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) tail fluke, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) pod swimming, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) two swimming underwater, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) mother and calf sperm whale swimming, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit

Franco Banfi / Sperm whale (Physeter macrocephalus) surfacing, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) at ocean surface, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) pod swimming, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Diamondback squid (Thysanoteuthis rhombus) pelagic eggs mass near water surface, Dominica, Caribbean Sea, Atlantic Ocean.

Franco Banfi / Sperm whale (Physeter macrocephalus) pod surfacing, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) pod surfacing, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Franco Banfi / Sperm whale (Physeter macrocephalus) pod surfacing, one with mouth open, Dominica, Caribbean Sea, Atlantic Ocean. Vulnerable (IUCN). Photo taken under permit.

Alex Mustard / Leather corals (Sarcophyton sp.) fluoresce at night under blue light on a coral reef. Laamu Atoll, Maldives. Indian Ocean.

Alex Mustard / Daytime and nightimte photos showing leather coral (Sarcophyton sp.) fluorescence at night under blue light on a coral reef, beneath a resort. Laamu Atoll, Maldives. Indian Ocean.

Alex Mustard / Pair of reef mantas (Mobula alfredi) visiting a colourful cleaning station on a coral reef. Laamu Atoll, Maldives. Indian Ocean.

Alex Mustard / Female scalefin anthias (Pseudanthias squamipinnis) swimming in front of a school of glassfish (Apogonidae), whose shiny bodies are rendered into out of focus bokeh patterns. Laamu Atoll, Maldives. In...

Alex Mustard / A tight school of oriental sweetlips (Plectorhinchus vittatus) hovering above a coral reef. Laamu Atoll, Maldives. Indian Ocean.

Alex Mustard / School of powderblue surgeonfish (Acanthurus leucosternon) feeding, Laamu Atoll, Maldives. Indian Ocean.

Sandra Bartocha / European Beech (Fagus sylvatica) with Baltic Sea in the background, Jasmund National Park, Ruegen, Germany. October.

David Tipling / Bempton Cliffs RSPB Reserve, viewed from North Landing, Yorkshire, UK. July, 2021.

David Tipling / Northern gannets (Morus bassanus) diving into sea, off Bempton Cliffs, Yorkshire, UK. July.

David Tipling / Northern gannet (Morus bassanus) adults fighting, Bempton Cliffs, Yorkshire, UK. July.

David Tipling / Northern gannet (Morus bassanus) adults fighting, Bempton Cliffs, Yorkshire, UK. July.

David Tipling / Northern gannet (Morus bassanus) diving into sea, Bempton Cliffs, Yorkshire, UK. July.

David Tipling / Black-legged kittiwake (Rissa tridactyla) flock feeding offshore, Bempton Cliffs, Yorkshire, UK. July.

David Tipling / Northern gannets (Morus bassanus) diving off Bempton Cliffs, Yorkshire, UK. July.

David Tipling / Bempton Cliffs, RSPB Reserve, Yorkshire, UK. July, 2021.

Patricio Robles Gil / Wall painting of octopus, Chicxulub, North Coast of Yucatan Peninsula, Mexico.

Tony Wu / Two mature male Asian sheepshead wrasses (Semicossyphus reticulatus) fighting over territory during breeding season. Mature males take on a whitish coloration, when approaching females and during terr...

Tony Wu / Male Asian sheepshead wrasse (Semicossyphus reticulatus) courting a female. The female has a swollen belly, indicative of her readiness to spawn. Niigata Prefecture, Japan.

Tony Wu / Large gathering of sperm whales (Physeter macrocephalus) comprising hundreds, perhaps thousands of individual whales that spanned horizon to horizon for nearly three days. This was likely a meeting of...

Tony Wu / Inquisitive Sperm whale calf (Physeter macrocephalus) approaching with mouth open. This calf is part of a family unit that has three juvenile whales in it. The family unit was one of many that gathere...

Tony Wu / Lionfish (Pterois volitans) patrolling the edge of Suzie's Bommie, a healthy reef and popular dive site accessible from Lololata Island Resort near Port Moresby, Coral Sea, Papua New Guinea.