image: Anna's hummingbird (Calypte anna) and black-chinned hummingbird (Archilochus alexandri) in the Santa Monica Mountains, California. This material relates to a paper that appeared in the Aug. 22, 2014, issue of Science, published by AAAS. The paper, by Maude W. Baldwin at Harvard University in Cambridge, MA, and colleagues was titled, 'Evolution of sweet taste perception in hummingbirds by transformation of the ancestral umami receptor.' view more
Credit: [Credit: Maude W. Baldwin]