Neutrino Coming Through!
There are objects that are smaller than neutrons that are called neutrinos. Neutrinos have a rumored mass of zero (we're genuinely not qualified to explain quantum physics, we wish we could elaborate more on this one), and float freely between atoms. Neutrinos are so small and so plentiful that literally, every millisecond of your life, trillions of neutrinos pass through your body around the atoms that make up the molecules of your cells.
The Tiniest Demon
The world's smallest wasp is microscopic. In fact, it's so small that it's even smaller than the amoeba. The Megaphragma mymaripenne wasp has all the charactaristics of a wasp, but it is just a fifth of a millimeter long, making it smaller than some single-celled organisms.
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