Fossils of alvarezsaurid dinosaurs show bird-like air sacs in their bones. Scans revealed hollow spaces connected to their ...
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Birds & Blooms on MSNAll About Bird Wings and Flight FeathersThe Wright Brothers studied bird flight before they designed the first airplane. Now modern aircraft fly higher and faster ...
An advertisement for the 1994 World Cup, fast food wrappers, COVID-19 masks—what birds used to build their nests reflects a ...
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