A protective mucous cocoon surrounds this parrotfish as it sleeps in Australia's Great Barrier Reef. This layer of protection helps fend off predators so parrotfish can get a good night's rest.
Octopuses seen hunting together with fish in rare video — and punching fish that don’t cooperate
Octopuses have often been thought to prowl the seafloor solo using camouflage. But a new study suggests that some have surprisingly rich social lives. A new study found that some members of an octopus ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results