Revillagigedos Islands: Underwater images of sharks approaching the bait at the surface. This image is from Shark Men.
Fischer Productions / Mark Frapwell
Clewiston, FL, USA: An Asian water buffalo. This image is from Swamp Men.
Spectrum Field Productions, LLC
Capped heron with its wings open.This image is from Secret Brazil.
Bossa Nova Films/Cristian Dimitrius
A hammerhead shark (sphyrna lewini). They have eyes at the very edge of their head that allow them to see nearly everything around them. This image is from World's Deadliest.
iStockphoto.com/ Ian Scott
Cougar lying down resting. This image is from World's Deadliest.
Mary Casey
Jaguar stalks its prey. This image is from Secret Brazil.
Bossa Nova Films/Cristian Dimitrius
Whisper and Dean Potter take in the view at Turtle Back Dome in Yosemite National Park. This image is from The Man Who Can Fly.
NGT/ Pablo Durana
Zebras in Singita Kruger National Park which is situated where two rivers meet, in an exclusive game-rich 15,000 hectares concession. This image is from Safari Live.
Aquavision/National Geographic Channels International
Tigers are the biggest and most powerful cats on Earth today. They have over 100 stripes that help them blend into the grass. This image is from World's Deadliest.
iStockphoto.com/ Iliuta Goean
Hippo swimming and splashing in a river. This image is from Ultimate Predators.
Ablestock.com
Lions feeds on zebra carcass. This image is from Super Pride.
NGT
A brown grizzly bear roaring. They can smell a rotting carcass from nearly two miles away. This image is from World's Deadliest.
iStockphoto.com/ Justin Horrocks
A hyena and her young roaming in Kruger National Park, Africa. They are scavengers but also predatory strategists, a typical stratagem being to form a semi-circle around a herd and pick off the stragglers. This image is from World's Deadliest.
2010 iStockphoto LP / Sandra vom Stein
Caimans at sunset. This image is from Secret Brazil.
Bossa Nova Films/Cristian Dimitrius
This Polar Bear and two cubs were feeding on a just caught bearded seal. The polar bears keen sense of smell can detect a seal from a mile away and under three feet of snow. This image is from World's Deadliest.
iStockphoto.com/ Peter Zwitser
Bird in Pantanal. This image is from Secret Brazil.
Bossa Nova Films/Cristian Dimitrius
Kaktovik, AK, USA: Two polar bears stand next to each other on the beach. This image is from Wild Alaska.
National Geographic Channels
This monitor lizard measures 2 meters long. They have long necks, powerful tails and claws, and well-developed limbs. This image is from World's Deadliest.
iStockphoto.com/ Nikontiger
A little monkey in Pantanal. This image is from Secret Brazil.
Bossa Nova Films/Cristian Dimitrius
Lioness climbs down from tree as night sets in. This image is from Super Pride.
NGT
Big Cypress, FL, USA: Close-up of a Seminole statue in the Big Cypress swamp. This image is from Swamp Men.
Spectrum Field Productions, LLC
Mt. Bute, British Columbia: Ready to make the leap, Dean Potter pushes the boundaries of human powered flight. This image is from The Man Who Can Fly.
Mikey Schaefer
A Nile crocodile (crocodylus niloticus) displaying its teeth in South Africa. They have up to 68 teeth - shed and replaced all their lives, to keep them sharp. The Nile croc is Africa's biggest reptile and the top predator in its rivers. It grows longer than five meters, and weighs more than 900 kilograms. This image is from World's Deadliest.
iStockphoto.com/ Krister Wulff
An arctic hare. This image is from Mysteries of the Moose.
Mark Emery
Agra, India: The magnicifent view of Taj Mahal with a yellow sky background as the sun calmly sets. The photo was taken from Taj Mahal Nature Walk. This image is from Access 360°: Taj Mahal.
National Geographic Channels/ Lau Hon Meng
Central African Republic: A juveNile gorilla is seen here sitting in a tree chewing on some grass. This image is from My Gorilla Life.
Christina Karliczek
Grumeti River, Tanzania: Cheetahs are the fastest land mammals on Earth. This image is from Mother Croc.
NDR Naturfilm / Ivo Nörenberg
Baktawng village, Mizoram, India: A family photograph of the Ziona family on January 30, 2011. This image is from Megafamilies.
Barcroft Productions
A Jumping spider has its fangs in a fly. The jumping spider has eight eyes and eight legs to work with. It has 360 degrees of vision and also great distance vision. This image is from World's Deadliest.
iStockphoto.com/ Cathy Keifer
A marsh deer. This image is from Secret Brazil.
Bossa Nova Films/Lygia Barbosa
Brazil: A frog in the rainforest surrounding Jau National Park. Frogs are very sensitive to humidity so their abundance in the rainforest can be a good indication that the ecosystem is doing well. This image is from Access 360°: The Amazon.
National Geographic Channels/ Rob Taylor