Hammerhead sharks roll over and swim sideways to save energy

Hammerhead Sharks 'Hold Their Breath' Deep-Diving to Avoid Freezing

The Little Clowns of Happytown – @bogleech on Tumblr

Hammerhead sharks swim on their sides to save energy, scientists discover

Hammerhead sharks hold their breath on deep water hunts to stay warm

Hammerhead sharks roll over and swim sideways to save energy Awesome Shark Guardian Shark fact: Hammerhead sharks roll over and swim sideways to save energy! New research on great hammerheads shows

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