At the southern end of Fakarava Atoll, a reserve in French Polynesia, is a narrow channel connecting the lagoon to the ocean. It is the hunting grounds of up to 900 reef sharks, including grey reef, whitetip reef, silvertip, and blacktip reef sharks.

Researchers studying this nearly pristine ecosystem recently documented a new phenomenon during their nighttime dives: The sharks hunt in packs.

Read the whole story at my Animal Minds blog: The Sharks That Hunt in Packs.