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为什么树懒这么慢？
5,969,813 views |
肯尼·科根 |
TED-Ed
• April 2017
Read transcript
查看完整课程：http://ed.ted.com/lessons/why-are-sloths-so-slow-kenny-coogan 树獭把大部分时间花在吃饭、休息或睡觉上；事实上，他们每周只有一次从树冠上下来上厕所。为什么这些生物的能耗这么低？肯尼·科根（Kenny Coogan）描述了树懒身体和行为上的适应性，正是这些适应性让树懒变得如此缓慢。 授课：肯尼·科根，动画：安东·博加蒂（Anton Bogaty）。
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