Shark Dive | What Sam Sees

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: ➡ Check out our playlist: ➡ Visit our website: ➡ Get the book: About What Sam Sees: Jump into the water with scuba diver Sam …