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weirdfact · 1 month
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weirdfact · 3 months
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Scientifically speaking, rubies and sapphires are the same mineral (corundum). Both are made of alumina and oxygen, but they just differ in color. When a corundum is red, it is classified as a ruby, and when it’s blue, it is called a sapphire. Rubies are red colored mainly because of the presence of the chromium element. Sapphires are blue when they contain traces of iron and titanium. (Source)
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weirdfact · 8 months
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The lost rivers of London that have now been built over.
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weirdfact · 10 months
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“Centipedes are long, thin arthropods with one pair of legs per body segment. Despite "centi" in their name, which implies 100 legs, centipedes can have fewer than 20 legs to more than 300 legs, but they always have an odd number of pairs of legs.“
(source)
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weirdfact · 10 months
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TUMBLR I HAVE JUST LEARNED SOMETHING AMAZING AND MUST INFLICT IT IN YOU
There is a Japanese water beetle called Regimbartia attenuata. It has developed an incredible adaptation to be being eaten by pond frogs.
It walks out the frog’s butt.
The beetles get swallowed whole, and usually that would be considered Kinda Fatal, but this particular species is just like “DID YOU THINK A FROG’S DIGESTIVE TRACT COULD HOLD ME?!” and proceeds to walk through the frog’s intestines, then presumably stimulate the frog’s hind gut with its legs so that the frog poops. The beetles emerge headfirst and 93% of them survive and live on for weeks afterward.
Apparently some beetles can do this obstacle course in six minutes! (Usually takes a few hours, but some people will speedrun ANYTHING.)
Isn’t that COOL?!
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weirdfact · 10 months
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weirdfact · 10 months
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weirdfact · 10 months
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weirdfact · 10 months
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weirdfact · 10 months
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See link for larger version of map.
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weirdfact · 10 months
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weirdfact · 10 months
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weirdfact · 10 months
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weirdfact · 10 months
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Estimated Migration Of Early Homo Sapiens Out Of Africa To The Rest Of The World, In Thousands Of Years Ago (KYA)
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weirdfact · 10 months
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weirdfact · 10 months
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weirdfact · 10 months
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