› added 7 years ago

97

TIL there is a species intermediate in size between a wallaby and a kangaroo. They are called wallaroos.

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b0PN TIL that, at the embryonic stage of development, humans have two hearts. They eventually fuse into one but, theoretically, if they were kept separated they would develop into two functional hearts.
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6EaxJ TIL that the British Library is legally required to obtain a copy of every book published in the UK and Ireland, and also purchases a large percentage of English language books published abroad. This equates to an additional 6 miles of shelving each year.
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