DNA changes may show how whales adapted to water

By Ashley Yeager, 15:33 PM November 25, 2013

Comparing the genetic material of whales has revealed DNA changes that may have helped the animals adapt to living in water.

Whales’ closest living relatives are species of hippopotamuses. The earliest, fully aquatic whalelike animals probably lived around 52 million to 54 million years ago.

To determine what adaptations could have helped the animals become fully aquatic, scientists studied the genomes of three minke whales, a fin whale, a bottlenose dolphin and a finless porpoise. The results ...

Source URL: https://www.sciencenews.org/blog/science-ticker/dna-changes-may-show-how-whales-adapted-water