In what is believed to be the first time in two decades, a blue whale was seen in the waters off Cape Ann this week. The largest animal on the planet, the blue whale seen Monday was almost as long as ...

Size comparison of a modern blue whale (Balaenoptera musculus) and the extinct Perucetus colossus, known from a fossil discovered in Peru. Researchers initially estimated the mass of Perucetus as ...

Blue Whales are the largest animal ever to have lived, but just reading that doesn’t quite convey their colossal proportions. They are bigger than the biggest dinosaur and weigh as much as 200 cars.

Monterey Bay Whale Watch spotted their first blue whale of the season on June 20, the organization announced. A video taken that morning shows an aerial view of the massive mammal gliding just beneath ...