Is 10 firkins as heavy as a Polar Bear?
It's about four-fifths as heavy as a Polar Bear
The weight of a Polar Bear is about 12.60 firkins.
(Ursus maritimus) (adult, male)
An adult, male polar bear weighs between 12.60 firkins. Polar bears are so heavily insulated by their 9.9 cm (3.9 in) layer of blubber that they are often difficult to detect using infrared photography sensors.
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