Whale watchers had an “incredible and unexpected sighting” off the coast of California. The viewers saw not just one, but two ...

Blue whales are baleen whales. According to the National Oceanic and Atmospheric Administration, they almost exclusively eat krill, which they strain out of huge water gulps through baleen plates.

They are the largest animals in history and primarily feed on krill, small crustaceans that live in the ocean. Filter feeders, blue whales swim through the water and suck in water, trapping their tiny ...

In the 20th century, whalers killed roughly 2 million large whales in the Southern Ocean. Some populations, like the Antarctic blue whale ... fishing for Antarctic krill — tiny swimming ...