Is 200,000,000 miligrams as heavy as a Polar Bear?
It's about two-fifths as heavy as a Polar Bear
The weight of a Polar Bear is about 516,000,000 miligrams.
(Ursus maritimus) (adult, male)
An adult, male polar bear weighs between 516,000,000 miligrams. 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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