Chicago, ILL.: Nizar Ibrahim is a vertebral palaeontologist at the University of Chicago. He talks about the skull of the Spinosaurus he focuses on the jaw and nose opening. This image is from Top 10 Biggest Beasts Ever.
Great Barrier Reef: Commercial dive instructor Paddy Colwell diving the steep walls of Osprey Reef, an extinct volcano with drop offs that plunge a thousand metres down. This image is from Life on the Barrier Reef.
As soon as the little meerkats are old enough to come out of their den, the curiosity is bigger than their fear. Together they are exploring everything around them. Some are braver than others. This image is from Masters of the Wild.
Houston, Texas: Top predators in their day, the tyrannosaur specimens at Houston Museum of Natural Science look as terrifying as ever, some 66 million years later. This image is from T. rex: Ultimate Survivor.
Lioness in foreground staring down African elephant in background as it walks past staring back. Stand-offs between these two strong animals is not uncommon, and some lion prides are known to take down elephants during the dry, harshest months of the year. This image is from March of The Elephants.
Hill City, S.D.: Pete Larson, paleontologist and president of the Black Hills Institute of Geological Research in South Dakota, stands amongst his fossil collection. Pete led the team that discovered and excavated "Sue", the largest and most complete Tyrannosaurus rex ever found. This image is from Dino Death Match.
Elephant calf in foreground with wet trunk. Adult elephants drinking water in background. The young calf tries to imitate the behaviour of the elders, even though he will be on a strict diet of his mother's milk for the first few years of his life. This image is from March of The Elephants.
Great Barrier Reef: A green sea turtle climbs up the beach of Raine Island to lay her eggs. Raine Island is the largest Green Sea Turtle rookery in the world. This image is from Life on the Barrier Reef.
Two elephants standing and drinking from small water source. The water holes also give elephants access to important mineral sources buried deep below the surface. This image is from March of The Elephants.