Fine filaments filter waterpeacock worm
The radiating tentacles of peacock worms filter water for food using fine fringed filaments.
Asymmetric burrow openings create passive ventilationprairie dog
Differences in position and shape of burrow openings of black-tailed prairie dogs create passive ventilation from wind energy by altering air pressure.
Wing scales cause light to diffract and interfereMorpho butterflies
Wings of Morpho butterflies create color by causing light waves to diffract and interfere.