Southern elephant seal (Mirounga leonina) challenger bull among king penguin chicks at Gold Harbour on South Georgia, Polar Regions

Elephants, Loxodonta africana, socialising in Addo Elephant National park, Eastern Cape, South Africa

Sow in an Akha tribe village in the mountains surrounding Muang La, Oudomxay Province, northwestern Laos

Manta Ray (Mobula), Maupiti, Society Islands, French Polynesia, South Pacific, Pacific

Manta Ray (Mobula), Maupiti, Society Islands, French Polynesia, South Pacific, Pacific

Whalebone Alley, female tourist standing between bow head whale rib bones, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Whalebone Alley, female tourist sitting on bowhead whale bone, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Whalebone Alley, Bowhead whale bones, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Whalebone Alley, Bowhead whale bone, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Albatros. Tourists on a snorkeling excursion to view black tipped sharks and sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Tourists on a snorkeling excursion to view black tipped sharks and sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Bottlenose Dolphin (Tursiops truncatus) riding waves. Dolphins in Tuamotu islands, Rangiroa Atoll, cruise aboard the Paul Gauguin cruise, Society Islands, French Polynesia, South Pacific.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Silk Road, China

Man swimming with a stingray (Dasyatis sp.), Stingray World, Hauru Point Moorea, Windward Islands, Society Islands, French Polynesia, Pacific Ocean

Man swimming with a stingray (Dasyatis sp.), Stingray World, Hauru Point Moorea, Windward Islands, Society Islands, French Polynesia, Pacific Ocean

Schuhplattler traditional dance, contest for the Bavarian lion, hosted by the folklore society "d`Veiglberger", Neufahrn on the right of the Isar, Bavaria, Germany, Europe

Country Fire Society for the Province of Saxony, insurance sticker on a restored half-timbered facade, northern Germany, Lower Saxony, Germany, Europe

Glass floor in a room of bora bora nui resort and spa, Bora bora island society islands french polynesia south pacific

Snorkeler under the glass floor in a room of bora bora nui resort and spa, Bora bora island society islands french polynesia south pacific

Shallow pristine coral reef, Fakarava island tuamotus group french polynesia south pacific

Salted blue shark drying in the sun, Guerero Negro Mexico

Great Hammerhead Shark and divers on sandy bottom, Bahamas

Great Hammerhead Shark and divers on sandy bottom, Bahamas

Round Stingray and Diver, Azores Atlantic Ocean

Diver and school of young bluefin tuna, Azores