Condoms were originally made of animal intestines or linen.
347
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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