In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
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Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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The Basenji dog is the only dog that is not able to bark.
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Sheep, goats, octopuses, and toads have rectangular pupils.
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Whales and dolphins can't taste anything other than salt.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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