Freshwater fish at top of food chain evolve more slowly

Thursday, July 30, 2009 - 15:56 in Biology & Nature

Since evolving to eat other fish, freshwater fish at the top of the food chain have remained relatively unchanged compared with their insect- and snail-eating cousins, according to new research. Scientists report in the journal Evolution that once these fish, known as centrarchids, became top predators in aquatic ecosystems, natural selection put the brakes on their evolution.read more

Read the whole article on Harvard Science

More from Harvard Science

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net