The –est Animals

To zip through water, swordfish reduce drag

Newly found organ excretes oil that may increase swimming efficiency

swordfish

SEA SPEED  Swordfish are one of the fastest fish in the ocean, thanks to their streamlined bodies — and possibly their slick skin.

Angel Fitor/Science Source

By Laurel Hamers

- More than 2 years ago

Olympic swimmers shave their bodies before a big race to break records.