lunedì 25 agosto 2014

NYT Science: The Hummingbird’s Special Sweet Tooth

The Hummingbird’s Special Sweet Tooth
By DOUGLAS QUENQUA

Nectar makes up about three-quarters of a hummingbird’s diet, yet birds seem to lack the receptor that vertebrates use to taste sweetness. Researchers say they have solved the mystery.

Published: August 26, 2014 at 4:00AM

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