As the great wildebeest migration begins, National Geographic explorer and wildlife filmmaker Bertie Gregory arrives in the Serengeti to follow the world’s fastest land animal, the cheetah. Watch as he reveals the cheetah’s world, from a devoted mother raising her vulnerable cubs to young males carrying out breathtaking team hunts, uncovering the hidden challenges this iconic species faces. Watch Cheetahs Up Close with Bertie Gregory, Sunday 4th January at 7pm, on National Geographic WILD UK | N

European explorers spent hundreds of years searching for the Northwest Passage, the fabled Arctic shortcut between the Atlantic and Pacific Oceans. However, one prominent explorer, Sir John Franklin, along with his two ships and 129 crew members, mysteriously vanished during their journey to find the passage. So, what exactly happened to the Franklin expedition? Learn more about the mystery and how it still captivates explorers today: https://on.natgeo.com/3FTst8q Host: Halley Brown | National G