Blue whales are the most massive animals to exist in the history of animals. Dreadnoughtus and those other thundering, 60-ton dinosaurs? Bantamweights next to one of today's 100-ton Balaenoptera musculus.
Democracy Dies in Darkness
How did whales get so big? Paleontologists say they’ve figured it out.
By Ben Guarino
May 25, 2017 at 6:00 a.m. EDT