Darwin's Amazing Animals S2022E08 - Docile Predator ― Sand Tiger Shark, Japan

The sharks are circling ... but those jaws aren't meant to incite panic! The Darwin crew joins a survey team as it tries to unlock the secrets of the docile and endangered sand tiger shark in the wild. The group has chosen Japan's Ogasawara Islands, a World Natural Heritage site, as its research base. Tracking soon leads to a range of locations, revealing never-before-seen behaviors. The discovery of a pair of pregnant sharks and their rather rambunctious fetuses leaves the researchers stunned.