The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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The largest earthworm on record was found in South Africa and measured 22 feet.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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