Discover the blue whale, the biggest animal to ever live. Learn its size, diet, and surprising facts about this ocean giant.
Its appetite hinges on nutrient-rich krill swarms, so climate shifts that shrink krill threaten energy reserves and migration. Read on to discover the 12-inch-thick throat muscles and a 90-second gulp ...
A blue whale calf with its mother near the coast of island Pico (Azores)© tane-mahuta/iStock / Getty Images Plus via Getty Images "The blue whale is the largest and loudest animal on Earth." The blue ...