Further remains of an unusual deep-sea creature called a seven-arm octopus have been found on an Aberdeenshire beach. Arms ...

What animal has blue blood, three hearts and can change color and shape within three-tenths of a second? The same animal has venom like a snake, a beak like a parrot and ink like a pen. It is an ...

New guidelines offer scientists and fisheries a way to tell the age of an octopus. By Laura Baisas Published Apr 11, 2024 11:59 AM EDT Get the Popular Science daily newsletter💡 Breakthroughs, ...

Most carnivores have teeth to grasp and eat prey, so marine animals with teeth are not uncommon. Sharks, dolphins, eels, whales, many fish species, and marine mammals like seals and sea lions have ...

Octopuses, intelligent and agile predators, typically overpower crabs using their flexible arms, sharp beaks, and problem-solving skills. Crabs rely on their hard shells and strong claws for defense, ...