Add Yahoo as a preferred source to see more of our stories on Google. The blue whale holds the title as the largest animal ever known to have lived on Earth. This video explores how big blue whales ...

Its appetite hinges on nutrient-rich krill swarms, so climate shifts that shrink krill threaten energy reserves and migration. Read on to discover the 12-inch-thick throat muscles and a 90-second gulp ...

Majestic gray whales migrate off the California coast in spring and, like barnacles hoping to latch on, thousands of people flock to see them. In 2025, there will be more whale festivals than previous ...