system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why do cats throw stuff on the ground?
gpt
Cats like to push things off of ledges to check if they are alive. Its a behaviour that exists to discover mice that are playing dead. Cats often play with their food and dont eat it right away so its a good idea to make sure that your meal isnt going to run away on you the second you look away.