Do animals feel pain?

Yes they do.

All animals feel physical pain.
Some of them feel emotional pain too. Some animals have even been known to have trauma and PTSD symptoms long after they've been out of that situation.

Most.
My understanding is that the verdict is mixed on shellfish and insects. It doesn't appear mussels, clams and the like feel pain.

Definitely. I feel for them. Poor babies.

duh

What type of pain?

Emotional or physical?

duh they are like humans

Yes, physical and emotional.

Of course they do. I'll never understand why some people think that they don't.