Animals
Crows Hold Grudges and Recognise Faces
Crows can recognise individual human faces and hold grudges for years. They have been observed teaching their offspring to distrust specific people who have harmed them.
Animals
Elephants Are the Only Animals That Can't Jump
Elephants are the only mammals that cannot jump. Their bones are too dense and their weight too great — even when running at full speed, at least one foot is always on the ground.
Animals
A Snail Can Sleep for 3 Years
Snails need moisture to survive. During drought or cold, they seal themselves in their shells and can hibernate for up to three years, resuming normal activity when conditions improve.
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