Flying insects called Gnats are abundant creatures in Grounded that you can find and kill for food and essential crafting materials. These passive animals may not be trying to harm you, but you need every resource you can get to survive as a shrunk-down character in the backyard wilderness. Thankfully, there are ways to trick elusive Gnats into approaching you for an easy hunt.

https://screenrant.com/where-to-find-kill-gnats-grounded/