The first baby humpback whale of the season has been spotted swimming in the Salish Sea off Washington, photos show. Big Mama ...

Gliding gracefully through the marine waters, the blue whale is considered to be the largest creature to have ever existed.

"Big Mama" and her eighth calf have migrated back to PNW waters! They were recently spotted near San Juan Islands.

An increasing number of humpback whales are being born in southerly waters, potentially exposing calves to greater risks.