A tragic and violent scene plays out as wildebeest herds attempt to cross a river teeming with crocs.
(02:59)The tallest man-made structure on earth, a city in the sky, is the pinnacle of skyscraper engineering.
(01:57)4D Ultrasound Technology. The role of 4D scans in revealing the mystery behind multiples and some surprises from within the womb.
(03:28)I Didn't Know That, is an action-packed series that exposes the little-known facts about ordinary items we take for granted .
(00:41)Three different breeds, one single species. Now for the first time, watch the differences as they emerge.
(01:09)Girl With 2 Faces
(00:42)Witness the lifecycle of a monarch butterfly - from egg to pupa to adult.
(03:00)Monster of The Milky Way
(01:24)Nat Geo Women's Hour
(00:32)While young harp seals take to the sea, their nemesis roams the ice. Polar bears spend most of their lives on the frozen pack h...
(03:20)Reggie, Diva, Rocco & Vito, and Mugsy
(03:39)The world’s longest suspension bridge is designed to withstand typhoons, tsunamis and earthquakes.
(01:58)After mating in the forest, red crab females descend down tall cliffs into the sea where they release their eggs.
(02:58)Girl Gang
(00:39)Monarch butterflies descend to the forest floor in order to mate and begin their migration north.
(02:13)The scorching sun proves to be too much for one elephant calf, whose family can only watch its sad demise.
(02:42)Rivers and Life
(01:46)Aircraft Carrier
(02:00)Petra
(01:02)Hitler hammers home his simplistic nationalist slogans. He wants to make Germany the world power.
(03:09)