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왜 어떤 새들은 날 수 없을까요? |길리안 깁(Gillian Gibb)
2,281,940 views |
길리안 깁 |
TED-Ed
• October 2018
Read transcript
현대 모든 새들의 공통된 조상은 날 수 있었지만 많은 종류의 새들은 자주적으로 비행하지 않습니다. 새들은 비행을 함으로써 놀라운 이점들을 가질 수 있습니다. 특히 포식자들로부터 도망칠 때, 사냥할 때, 먼 거리를 이동할 때 유리합니다. 하지만 이것은 상당히 많은 양의 에너지를 소비하고 몸의 무게와 크기를 제한합니다. 길리안 깁은 새들이 비행하지 않게 된 이유에 대해 이야기합니다.
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