YellowGreenD:Unseeables

EDIT: Renamed Wee Behemoth, renamed and redesigned Air Rod, redesigned Splitter Virus slightly. Added descriptions.

All of these are (in reality) invisible to the naked eye.
One is based on real cell structure, one is a viral body, and one is a cryptid, known as an Air Rod.
The new name Wee Behemoth is a play on Wee Beastie, which is supposedly what Carl Linnaeus, the man who discovered bacteria, called them.
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Wee Behemoth: A large multicellular moneran that perfectly mimics the structure of a normal cell, but with a larger size comes a slightly greater intelligence. Unlike single-celled monerans, it is capable of basic thought processes, vaguely percieves nad displays emotion, and displays primitive pack behaviour, sticking in groups to avoid predation. Unlike its smaller cousins, however, it has lost its parasitic disease capabilities, but this is made up for by the way its body membrane reduces shock and can act as a suffocating liquid.

Splitter Virus: Capable of rapid cell division, this large, virus-like creature can divide in half with the proper stimulus, such as a bolt of lightning or flame. The new copy will display lessened pigmentation, and this can gage its ability to divide. The paler a copy, the less it will be able to split further. Over time, copies will regenerate their health which can be seen as color flushing back into the creature.

Airworm: Large worms that have taken to the air with several pairs of wings, the blackened tint of which can distort the light around it to appear as a bizarre shimmer at will by increasing the rate at which it beats its wings. It divebombs small prey such as flies, slugs and snails to feed.