Investigators examine some unusual suspects in mysterious shark attacks.

Looking to see if there is a connection between shipwrecks and shark attacks.

Experts investigate why most shark attack victims are men.

Scientists try to uncover why pregnant sharks seem more likely to attack.

Sharks are the perfect predator; seeing if humans can learn to outsmart sharks.

Brazen attacks targeting people; seeing if sharks are competing with humans for food.

Scientists race to understand what exactly makes sharks so stealthy to save lives.

Investigators explore why sharks are attacking people in cities.