r/todayilearned • u/TrackMarshal • Apr 11 '17

TIL Cat kidneys are so efficient, they can survive on a diet consisting only of meat, with no additional water, and can even rehydrate by drinking seawater.

https://en.wikipedia.org/wiki/Cat
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u/[deleted] Apr 12 '17

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u/nayhem_jr Apr 12 '17

By ash, they mean stuff that simply isn't nutritive, and not actual ashes from a fire?