Biologists report how whales have changed over 35 million years
Friday, May 28, 2010 - 16:31
in Biology & Nature
(PhysOrg.com) -- Whales are remarkably diverse, with 84 living species of dramatically different sizes and more than 400 other species that have gone extinct, including some that lived partly on land. Why are there so many whale species, with so much diversity in body size?