Τετάρτη 17 Μαΐου 2017

Hopping miniature parrots suggests how birds first got airborne

chin4hr.jpg

Parrotlets save energy when foraging by jumping from perch to perch with a few wingbeats, a technique that might have predated true flight

from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2rrSUHm
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