Gorillas are considered to be very intelligent animals. They are known for their use of tools and their varied communication. Some gorillas in captivity at a zoo have been taught to use sign language.

People whose mouth has a narrow roof are more likely to snore. This is because they have less oxygen going through their nose.

Two objects have struck the earth with enough force to destroy a whole city. Each object, one in 1908 and again in 1947, struck regions of Siberia. Not one human being was hurt either time.

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