: an act of showing someone how something is used or done : demonstration. 1  I saw a demo on how to use the computer program. 2  The salesman gave us a demo of the vacuum cleaner, and it seemed to work very well. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples 3
If however, you are talking about some maggots in a bowl of wet food (either canned food or dry food which got wet or which you deliberately added fluid to) it is a different matter. Maggots come from flies eggs and they take some set period of time to hatch from the eggs.
Flies lay their eggs in the rotting meat, and when the maggots hatch, they have a food source. Because maggots like rotting meat, theyâre a good aid in medicine, where they will eat the dead flesh in a wound, leaving the living and healthy tissue alone. You can see this in action in the medical maggots therapy videos.