Joel Sartore / Photo Ark / Philyra spider crab (Micippa philyra) portrait, from the Gulf of Oman, UAE.

Joel Sartore / Photo Ark / Red Sea ghost crab (Ocypode saratan) portrait, Sharjah Aquarium, UAE. Captive.

Doug Perrine / Knobby sea stars (Pentaceraster cumingi) aggregating on seabed, probably gathering for mating, Makako Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Knobby sea stars (Pentaceraster cumingi) aggregating on seabed, probably gathering for mating, Makako Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Knobby sea stars (Pentaceraster cumingi) aggregating on seabed, probably gathering for mating, Makako Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Bigeye emperor (Monotaxis grandoculis) portrait, Honokohau, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Schooling Bigeye emperors (Monotaxis grandoculis), Honokohau, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Bigeye emperor (Monotaxis grandoculis) sub-adult, portrait, Honokohau, Kona, Hawaii, Pacific Ocean.

Pal Hermansen / King eiders (Somateria spectabilis), Eiders (Somateria mollissima) and Gulls (Larus sp.) in fishing harbour. During the winter time the birds gather in harbour to feed on fish waste, Batsfjord, Finnma...

Pal Hermansen / King eider (Somateria spectabilis) on water in fishing harbour, Batsfjord, Finnmark, Norway. February.

Pal Hermansen / Aerial view of wind turbines at Great Gabbard offshore wind park, off the coast of Suffolk, England, UK, North Sea. October, 2022.

Pal Hermansen / White-tailed eagle (Haliaeetus albicilla) fishing, Trondelag, Norway. September.