Ripples on the leading edge of humpback fins help the whales slice through water with grace and dexterity. Called tubercules, they reduce drag and allow humpbacks to “grip” the water and swim in tight circles, despite their enormous size.
Surfboard developers Fluid Earth built a fin patterned on humpback flippers.
Danielle Venton is a science writer who fosters a special love for bugs, plants, mountains, books and gorgeous space photos. She likes writing with a fountain pen and hopes to walk across the Himalayas one day.