system
Given the following post, respond as if you're commenting on Reddit:
human
Is bait scientifically classified as a tool?

If a predator uses bait to catch it's prey, has that predator used what scientists would classify as a tool?
gpt
It depends on whose definition you are using.

Some researchers consider a tool to be an object that is manipulated by the animal to extend the physical impact the animal has on itself or the environment. Some researchers will differentiate "tool use" and "object use". 

A bird using bread to catch a fish may be consider using a proto-tool. 

For more info search "tool use by animals".