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The heaviest elements on Earth are osmium and iridium, both discovered in 1803 by UK chemist Smithson Tenant. Osmium has a density measurement (weight compared to size) of 22.59, with a 30cm cube of osmium weighing 640kg.

American Camille Jordan was the proud owner of a budgie named Puck who knew an estimated 1728 words.

Carp collect in such numbers and at such a high density at the base of a reservoir in Pennsylvania that ducks are able to walk across the back of the fish and hardly get their feet wet.

The most jelly eaten in one minute – using only a set of chopsticks – is 45g by Noelle Ike