Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
2
A comet's tail always points away from the sun.
2
The offspring of two sets of identical twins are legally cousins but genetically siblings.
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Most elephants weigh less than a blue whale's tongue.
442
The reindeer is the only mammal that can see UV light.
17
The hole in the soda can tab is actually used to hold a straw in place and stop it from rising.
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