Army ants will migrate about 330 feet each night; the equivalent in human terms of a marathon.
The little red flying fox of Australia sometimes form camps of over one million individuals.
Male southern elephant seals, or bulls, must compete to earn the right to mate with an assembly of females.
Flick through our selection of images of some of the animls featured in the World's Deadliest series on Nat Geo WILD.
Award-winning photojournalist Tim Hetherington captures beauty, fear and pain in Korengal Valley, Afghanistan.
See images from the exciting series that investigates Ancient X Files.
The team collects venom from some of the ocean’s deadliest creatures in order to create life saving antivenom.