Scientists have spent decades studying octopuses, but these mysterious creatures continue to surprise them. Every discovery seems to answer one question while raising another. Here are five facts that ...

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 ...

For 25 years, a 300-million-year-old fossil from Illinois held an extraordinary distinction: the oldest octopus ever found, enshrined in the Guinness Book of Records and cited across decades of ...