school of fish
Making Waves and Avoiding Beaks
Moving collectively on the water surface could help protect schools of fish from being eaten by predatory birds.
Making Waves and Avoiding Beaks
Making Waves and Avoiding Beaks

Moving collectively on the water surface could help protect schools of fish from being eaten by predatory birds.

Moving collectively on the water surface could help protect schools of fish from being eaten by predatory birds.

ABOVE: JULIANE LUKAS
pattern
Image of the Day: Shark Skin
Ashley Yeager | Nov 8, 2018
Fish scales follow a model famed computer scientist Alan Turing developed to describe patterns observed in other animals’ feathers, spines, and scales.
Image of The Day: Open-and-Shut Case
Catherine Offord | Oct 4, 2018
A special hinge joint allows some turtle species to close and open their shells.
How the Zebra Got Its Stripes
Jef Akst | Feb 9, 2012
Zebras may have evolved their striped coat to avoid blood-sucking flies.