Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. It’s hard to identify individual members of another species ...

A distinct striped pattern on a species of octopus varies from one individual to the next, which could help researchers monitor the rare animal. Pygmy zebra octopuses (Octopus chierchiae), also known ...

There’s a famous viral video in which a diver slowly swims up to a clump of rock and seaweed, only for part of that clump to turn white, open its eye, and jet away, squirting ink behind it. Few videos ...