FfFfFfFF 58,118 Posted February 27, 2021 Share Posted February 27, 2021 A study of 250 species of Himalayan songbirds has revealed how their feathers evolved for higher altitudes. The insight reveals how feathers provide the tiniest birds with such efficient protection from extreme cold. The study, in the journal Ecography, was inspired by a tiny bird lead researcher Dr Sahas Barve saw during an icy day of fieldwork in the Himalayas, in 2014. "It was -10C," said the researcher from the Smithsonian National Museum of Natural History, in Washington DC. "And there was this little bird, a goldcrest, which weighs about the same as a teaspoon of sugar. "To survive, this bird has to keep its heart at about 40C," he said."I was like, 'OK, I really need to understand how feathers work.'" Examining the feathers of nearly 2,000 individual birds, in microscopic detail, he noticed a pattern linked their structure to their habitat. And Dr Barve's measurements revealed those living at higher elevations had more of the lower fluffy down. "They had fluffier jackets," he said. https://www.bbc.com/news/science-environment-56072590 Link to post Share on other sites More sharing options...
monster4life231 4,304 Posted February 27, 2021 Share Posted February 27, 2021 Amazing! Thank you for sharing spread peace - #MJInnocent Link to post Share on other sites More sharing options...
Stupid Oreo 14,669 Posted February 27, 2021 Share Posted February 27, 2021 birbs Link to post Share on other sites More sharing options...
BlueRose 397 Posted February 27, 2021 Share Posted February 27, 2021 I lovebirds Link to post Share on other sites More sharing options...
Economy 52,844 Posted February 28, 2021 Share Posted February 28, 2021 20 hours ago, BlueRose said: I lovebirds 21 hours ago, Stupid Oreo said: birbs Birdssssss. Lets be bird lovers Link to post Share on other sites More sharing options...
BlueRose 397 Posted February 28, 2021 Share Posted February 28, 2021 15 minutes ago, Economy said: Birdssssss. Lets be bird lovers ;p I don't Link to post Share on other sites More sharing options...
Chromatislaps 34,854 Posted February 28, 2021 Share Posted February 28, 2021 fluffy avian dinosaurs Link to post Share on other sites More sharing options...
Economy 52,844 Posted February 28, 2021 Share Posted February 28, 2021 10 minutes ago, BlueRose said: ;p I don't Dina will kill u if she hears that Link to post Share on other sites More sharing options...
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VanishIntoMe 3,973 Posted February 28, 2021 Share Posted February 28, 2021 Adorable! Link to post Share on other sites More sharing options...
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