Birds lost their sweet tooth, hummingbirds got it back
Friday, August 22, 2014 - 10:30
in Biology & Nature
Brooks HaysCAMBRIDGE, Mass., Aug. 22 (UPI) -- New research suggests hummingbirds have evolved their T1R1 and T1R3 sensors -- typically used to detect umami or savory flavors -- to pick out sugary notes.