Fleas, as pestilent as they are, are actually fascinating creatures. One of their best known “super powers” is their ability to jump hundreds of times their own body length. If we could perform a similar feat, we would be able to jump over buildings with ease. Looking up the flea on Wikipedia, I learned that their jump is not caused by muscular action, but by “energy stored in a protein named resilin”.  Fleas also have very tough little bodies, which are amazingly crush-resistant for their size.
Another thing I did not know about fleas was they only spend around…….. see more at link below.
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