system
Given the following post, respond as if you're commenting on Reddit:
human
Why do some animals tilt their heads when they are interested?

Like dogs, when something is interesting and it's paying attention to it, they tilt their heads to the side. Does this behaviour have some sort of survival value? Does it help them focus?
gpt
Animals cock and bob their heads as a depth perception gauge. So, yes it's kind of a survival quality. If they don't understand something it would serve their best interests to obtain as much information as they can, such as its size and location in space.

EDIT: obtain(s)