susanpf

More than 400 shark species live in oceans around the world. Find out how sharks help keep marine ecosystems healthy in this episode of "What Sam Sees."

➡ Subscribe for more National Geographic Kids videos: bit.ly/SubscribeToNatGeoKids

➡ Check out our playlist: bit.ly/WatchMoreWhatSamSees

➡ Visit our website: bit.ly/NGKWhatSamSees

➡ Get the book: bit.ly/NGKOceanAnimals

About What Sam Sees:

Jump into the water with scuba diver Sam and discover the amazing world of underwater animals. The Sam Cam gives you a secret look at her ocean adventures, which she goes on with aquarium experts whose exclusive interviews add more fun to the journey.

Check out our other fun series!:

Amazing Animals: bit.ly/WatchMoreAmazingAnimals

Awesome Animals: bit.ly/WatchMoreAwesomeAnimals

Animal LOL: bit.ly/WatchMoreAnimalLOL

Party Animals: bit.ly/WatchMorePartyAnimals

Weird But True! Fast Facts: bit.ly/WatchMoreWBTFastFacts

More National Geogra