Sometimes l think it's best not to know too much about stuff (I'm quids in then).
These little bastardos are called Tardigrades. They are very small (up to 1.5 millimetres) and can be found pretty much everywhere. And by everywhere - l mean everywhere.
It's the last time l lie around on the beach, that's for sure, as l won't be able to relax, now l know that these critters will be all over it.
Damn you! science and double damn you! microscopes.