In an unprecedented effort, 15 aquariums from around the world are teaming up to raise endangered baby zebra sharks and reintroduce them into the wild, where populations have nearly gone extinct.

"Sharkfest" dives deep with a new series and some jaw-dropping science. National Geographic's fan-favorite event is wilder than ever this year. With over 25 hours of original programming, "Sharkfest" ...

*National Geographic’s SHARKFEST returns for its wildest season yet, delivering over 25 hours of heart-pounding encounters and cutting-edge science. The event kicks off with “Sharks Up Close with ...