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為什麼某些鳥類不會飛？—吉利安．吉勃
2,345,806 views
|
吉利安．吉勃 |
TED-Ed
• October 2018
Read transcript
觀看完整課程：https://ed.ted.com/lessons/why-can-t-some-birds-fly-gillian-gibb 雖然現代鳥種的共同祖先會飛，很多不同的鳥類都分別失去飛行能力。飛行有很多不可思議的好處，特別是逃離掠食者或被獵食，及能長距離飛行。但是這也有很高的代價：消耗極大量的能量，體型及體重也受到限制。吉利安．吉勃探索為什麼鳥類要放棄飛行的能力。 授課：吉利安．吉勃；導演：安東．博加蒂
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