Heartbreaking video shows dolphins stuck in a miniscule tank in Mexico, languishing just a few feet from the open ocean — leaving activists appalled over “gut wrenching” conditions. Barceló Maya Grand ...

A rare super pod of 1,500 Risso’s dolphins appeared off California’s coast. They leaped, played, and interacted with ...

This type of dolphin with its stocky body and bulbous head can weigh as much as 1,100 pounds and reach up to 13 feet long. Colleen Talty, a marine biologist on the trip to track the annual ...

Risso’s dolphins, which can measure 10-plus feet, are robust cetaceans that typically travel in groups of between 10 and 30. They’re born with dark skin that lightens to a pale gray as they age.

Over four years, a team from Canada’s CetAsia Research Group traveled to the Amazon river, where they then closely watched ...