Learn how Indigenous knowledge and modern science reveal the rare cookiecutter shark, which hunts on moonless nights.

In the deep ocean, far from sunlight, a small shark has been quietly carving perfect circles of flesh out of animals many ...

Bull sharks (Carcharhinus Leucas) are one of the ocean’s most fearsome creatures. Although some animals may prey on bull sharks, such as crocodiles, killer whales, and the occasional great white shark ...