Dragonflies mating, Santa Cruz Island, Galapagos Islands, Ecuador, South America

King penguins (Aptenodytes patagonicus) at breeding and nesting colony at Right Whale Bay, South Georgia, Polar Regions

Adult black-legged kittiwake (Rissa tridactyla) in combat with a second kittiwake near Alexander Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia

Southern elephant seal (Mirounga leonina), beachmaster bull with female harem, Right Whale Bay, South Georgia, UK Overseas Protectorate, Polar Regions

Southern elephant seal (Mirounga leonina) bull holding female down for mating, Right Whale Bay, South Georgia, UK Overseas Protectorate, Polar Regions

Southern elephant seal (Mirounga leonina) bull holding female down for mating, Right Whale Bay, South Georgia, UK Overseas Protectorate, Polar Regions

Aerial view of Southern right whales (Balaena glacialis australis). Male courting a female in shallow water. Cape Peninsular, South Africa (rr)

Aerial view of Southern right whales (Balaena glacialis australis). Males courting a female in shallow water. Cape Peninsular, South Africa (rr)

Aerial view of Northern right whales (Balaena glacialis glacialis). Males courting a female. Gulf of Maine, USA. (rr)

Aerial view of Northern right whales (Balaena glacialis glacialis). Males courting a female. Gulf of Maine, USA. (rr)

Aerial view of Northern right whales (Balaena glacialis glacialis) in courtship. Gulf of Maine, USA. (rr)