* Many animals don't sit in the way humans do. They might rest on their haunches, lie down, or perch.
* Some animals don't have the physical structure to sit. For example, snakes or fish.
* Animals can learn to sit if trained. Dogs are famous for sitting on command, and even some birds can be trained to sit.
So, there isn't a single animal that never sits.
To make the question more specific, you could ask:
* Which animal doesn't sit naturally?
* Which animal can't sit because of its anatomy?
Let me know if you'd like to explore these options! 😊