We often believe that intelligence begins and ends with the brain. For humans, thinking, remembering, reacting, and learning are all connected to that complex organ inside our heads. But the ocean ...

Watch this clever sea otter trade its prized sea pebble for a fish, then read all about how clever these creatures are.

Researchers studying a deep-sea octopus called Muusoctopus robustus have found thousands of the animals congregating at hydrothermal springs near an underwater mountain off California, raising fresh ...

Humans are regarded as the most intellectually developed, in short intelligent species born on Earth. But do you know, who is ...