Gloucester, MA.: As the sky darkens with clouds, a seagull decides to hitch a ride on the Hot Tuna as it heads back to the dock. This image is from Wicked Tuna.
South Africa: Nile crocodiles (Crocodylus niloticus) lying on surface of water with heads partially exposed. The position of their nostrils on top of their snouts allows them to hide most of their body from potential prey. This image is from Incredible Gulpers.
Namibia: Great white pelican (Pelecanus onocrotalus) flying. These enormous birds make use of incredibly long bills and elastic pouches to scoop up their meals. This image is from Incredible Gulpers.
South Africa: Bee sitting on the lip of a pitcher plant. The pitcher's vibrant colours and nectar-laden lip attracts insects, which, once taken in, often fall victim to it's slippery and sticky opening, falling in to their death. This image is from Incredible Gulpers.
Suva, Fiji: Young devotee is pierced by priests as a sign of devotion, before making the walk back to Sangam Temple. This image is from My Pacific Quest.
Deep cuts in the reef at Millennium Atoll. Coral reefs are some of the most diverse and valuable ecosystems on Earth. Coral reefs support more species per unit area than any other marine environment, including about 4,000 species of fish, 800 species of hard corals and hundreds of other species. Scientists estimate that there may be another 1 to 8 million undiscovered species of organisms living in and around reefs. This image is from New Wave Warriors.
Sting ray deep beneath one of the world's best surf spots, Cortes Bank. Cortes is like a washing machine of currents that whips the beautiful kelp forest (and it's inhabitants) around. This image is from New Wave Warriors.
South Africa: African bullfrog (Pyxicephalus adspersus) face, revealing it's large eyes. African bullfrogs have massive bodies, with mouths and an appetite to match. This image is from Incredible Gulpers.
In Gniezno, central Poland, conflict archaeologist Tony Pollard explores an abandoned site of Hitlerâs wartime rail network. This image is from Nazi Megastructures.
Port Royal, Jamaica: View overlooking the remains of the Naval Hospital, on to the site of the sunken city. This image is from Drain the Sunken Pirate City.