How big do blue whales get?

Blue whales are rorquals (family Balaenopteridae), a family that includes the humpback whale, the fin whale, Bryde's whale, the sei whale, and the minke whale. The family Balaenopteridae is believed to have diverged from the other families of the suborder Mysticeti as long ago as the middle Oligocene (28 Ma ago). read more

During certain times of the year, a single adult blue whale consumes about 4 tons of krill a day. Blue whales are baleen whales, which means they have fringed plates of fingernail-like material, called baleen, attached to their upper jaws. read more

A jet engine registers at 140 decibels, the call of a blue whale reaches 188. Their language of pulses, groans, and moans can be heard by others up to 1,000 miles (1,600 kilometers) away. 7. They’ve got big appetites for tiny fish Blue whales feast on krill; their stomachs can hold 2,200 pounds of the tiny crustaceans at a time. read more