bumblebees on the wane

Global warming and evolution are reshaping the bodies of some American bumblebees, a new study finds.

The tongues of two Rocky Mountains species of bumblebees are about one-quarter shorter than they were 40 years ago, evolving that way because climate change altered the buffet of wildflowers they normally feed from, according to a study published Thursday in the journal Science.

Study co-author Candace Galen at the University of Missouri worries that without long-tongued bees, some flowers will falter.

Also, she said shorter tongue bees often “cheat” and bite a hole in the flower’s side, which doesn’t help the plant spread its seeds.

Fox News Science, 25 Sep 2015