Unprecedented numbers of the common octopus have been found in British waters this year, but what’s behind the rare ‘bloom’?

The sperm whale (Physeter macrocephalus) has the biggest brain of any animal on Earth today, with an average weight of 17 pounds (7.8 kilograms). Though scientists have long argued whether brain size ...

Cetaceans are among the most intelligent creatures in the ocean and many whales have used their big brains to develop cunning ...