In what was nothing short of an unforgettable experience, a diver encountered a blue whale while enjoying a swim in the ocean ...

A friendly whale shark floated over to scuba divers exploring a shipwreck site in Thailand. Footage shows the baby marine animal swimming close to the group as they floated around the HTMS Chang wreck ...

The Amami whale and dolphin association said its divers on the morning of Feb. 16 filmed a female whale swimming with what they believed was a tail fin of a calf exposed from her genital groove.