TIL of the Universal Law of Urination, which states that all mammals larger than approx. 1kg take about 20 seconds to empty their bladder, regardless of size. Investigators looked at animals ranging in size from rat to elephant and found the time to empty a full bladder to be nearly the same.

TIL of the Universal Law of Urination, which states that all mammals larger than approx. 1kg take about 20 seconds to empty their bladder, regardless of size. Investigators looked at animals ranging in size from rat to elephant and found the time to empty a full bladder to be nearly the same.

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