martedì 8 settembre 2015

NYT Science: The Hummingbird’s Tongue: How it Works

The Hummingbird’s Tongue: How it Works
By JAMES GORMAN

Hummingbirds have forked tongues that spring open once inserted into a flower acting like a pump to draw out nectar.

Published: September 8, 2015 at 06:00AM

via NYT Science http://ift.tt/1NfiIwn