2020-11-05

[public] 330K views, 11.3K likes, dislikes audio only

TED-Ed

Dive into the physics of the “Other Golden Rule” and explore the systems and methods animals use to excrete waste.

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A cat’s bladder can only store a golf ball’s worth of urine. For humans, it’s a coffee mug and for elephants, a kitchen trash can. An elephant’s bladder is 400 times the size of a cat’s, but it doesn’t take an elephant 400 times longer to pee. So, how does this work? David L. Hu digs into what scientists call the “Other Golden Rule.”

Lesson by David L. Hu, directed by Anton Bogaty.

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View full lesson: https://ed.ted.com/lessons/do-larger-animals-take-longer-to-pee-david-l-hu

Dig deeper with additional resources: https://ed.ted.com/lessons/do-larger-animals-take-longer-to-pee-david-l-hu#digdeeper

Animator's website: https://www.instagram.com/anton_bogaty/

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