Sorry, Darwin: Chinese fossil shows that not all early birds evolved to fly
Chinese scientists have unearthed a fossil of the earliest known flightless bird, offering compelling evidence that not all early birds evolved to take to the skies.
The discovery could also challenge long-held assumptions – including ideas dating back to evolutionary theorist Charles Darwin – that flightlessness in birds arose only as a secondary adaptation after earlier species had mastered flight.
The 150 million-year-old fossil of the Late Jurassic avialan Yuezhuornis yangyuanensis found in...
此摘要由5News从媒体的公开信息源汇聚而成。 包含完整背景的全文在www.scmp.com — 内容归South China Morning Post - China所有。
