Chainsaws were derived from a tool originally intended to help deliver babies
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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