Do animals experience emotions?

If so, do they feel emotions in the same way humans do? If not, how do they undergo the world and what rules their behavior?

We have ours, they have theirs.

Maybe not exactly the same way as our emotions are kinda "cluttered" by our human consciousness. But the basics are the same.

Emotions are based on evolutionary traits. And most of them date back to lifeforms way in the past where Homo sapiens or even apes in general didn't exist.

I think yes they do because wolves sometimes howl to say that they are lonely...x

If u have a cat, they show their emotion by eyes, teeth, ears and tail

I don't know if they experience it, but I am pretty sure they feel it.

Cats purr when happy, hiss when upset, and meow when they want something. That shows some emotion, doesn't it?

pain is just pain, happiness is just happiness... anger, love, hate, hunger, cold, tired are just what they are. In the same way you feel pain when you get kicked, an old dog feel pain if he gets kicked.

What you have never seen a sleeping dog dream?