Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Great hammerhead sharks (Sphyrna mokarran)—the funny looking big ...

While many sharks hunt for small, abundant prey when looking for a meal, great hammerheads have a supersized strategy with some big payoffs — eat other sharks. For a long time, scientists have ...

Shark cannibalism? A bizarre photo from University of Delaware oceanography researchers sure looks like it, and manages the unlikely feat of making sharks look even more frightening than they already ...

Legs kicking lazily in the water. An unknown force moving closer and closer. Two music notes — dun dun — playing faster and faster. Then: blood in the water. Steven Spielberg’s “Jaws,” the first ...