With no wetsuits, these divers swim freely in shark-infested waters.
(02:05)One of the top ten most-freaky sharks is the nurse shark, which proves to be the vampire of the sea!
(01:52)In a picturesque Mexican seaside town, a shark is about to surprise a lone surfer.
(03:02)Divers swim freely with sharks to learn more about the animal's behavior.
(03:48)Coming in at number 4, the tiger shark will eat just about anything.
(01:35)Leading the expedition is Dr. Enric Sala, a National Geographic Explorer and research scientist at Spain’s National Council.
(00:32)Ron Howard speaks on the constant evolution of our active quest for breakthroughs.
(02:00)Cesar and Dog Rescue Without Borders find a stray in desperate need of medical help.
(02:15)Meet Elsa Einstein, wife of Albert. Genius Season 1 premieres April 24 only on National Geographic.
(02:29)DotCom faces off against another strong fish while the boys on the Hot Tuna fight the clock to pull in a huge tuna.
(02:59)From Executive Producers Brian Grazer and Ron Howard, National Geographic's first scripted anthology series, GENIUS, will...
(02:33)What happens when you use the wrong type of balloon?
(03:11)In the Florida swamps, the gator reigns supreme.
(02:54)A million pounds of potatoes are processed per hour.
(02:44)Tim Shaw conducts a science experiment to see how many rubber bands it takes to make a watermelon explode.
(03:39)Neil deGrasse Tyson talks with Eugene Mirman and Janna Levin about his favorite thing, black holes.
(03:50)Shredding Oahu’s world-renowned waves, these unlikely friends perform a tandem-balancing act on the surfboard.
(01:42)Check out an inside view of a shark’s throat and gills after it bites into a hidden camera.
(02:57)Lucy is on a hunt for the world's weirdest penis and the Echidna named Grumpy has got the goods.
(02:54)