单词：nonfeathered
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LULU GARCIA-NAVARRO, HOST: At the Cornell Lab of Ornithology, there is an epic mural called simply The Wall Of Birds. It is the only mural in the world representing all 243 families of modern birds along with depictions of their evolution over their
2018年NPR美国国家公共电台11月
When we last left Astropup, he was flying into the mouth of a giant spaceship shaped like a bird (see Astropup for Freedom). At the centre of the spaceship is a giant tree holding up the nests and families of thousands upon thousands of highly intell
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Its an incredible idea. But most experts now believe that todays birds are the direct descendants of ancient dinosaurs. So does that mean birds actually are dinosaurs? Yes. Absolutely. How can you be sure about that？ You have evidence from the skel
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Robyn Williams: Australia has some of the finest living dinosaurs in the world. Yes, I mean birds. Our birds were among the first purveyors of birdsong in ancient history, so the science suggested earlier this year, despite what David Attenborough ha
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