Hiking up to the next plot…
... Mountain Biological Laboratory reported on Monday in Proceedings of the National Academy of Sciences that untrained broad-tailed hummingbirds can use these colors to help them identify sources of food. Testing 19 pairings of colors, the team found that... ... surgical precision. But they conceal another talent, too: seeing colors that human eyes can't perceive. Ultraviolet light from the sun creates colors throughout the natural world that are never seen by people. But researchers working ou