Young male gorillas usually leave their family group when they are about 11 years old and have their own family group by the age of 15 years old. Young female gorillas join a new group at about 8 years old.

Every continent has a city called Rome.

The green ring that is formed around the yolk of eggs that have been cooked too long is formed by the chemical reaction from the iron in the yolk and the sulphur in the white part of the egg.

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