A blue whale off the coast of California filmed for the BBC program “The Hunt.” | Courtesy of Hugh Pearson and David Reichert, Silverback Films/BBC
Animals

Whales Only Recently Evolved Into Giants

The early ancestors of 100-foot-long blue whales were dolphin-sized, according to new research that explains how they and other whale giants got to be so big.

Published On 05/24/2017
12:01 AM EDT
Video shot from a data tag affixed to the back of a blue whale as the marine mammal engulfs krill off the coast of California. | Jeremy A. Goldbogen, Stanford University
A blue whale off the coast of California from the BBC program “The Hunt.” | Hugh Pearson and David Reichert, Silverback Films/BBC