THAT is an interesting question, and one biologists and philosophers both try to tease out.
Humans clearly have enough. Dolphins almost certainly have enough.
Amoebas certainly do not. Trees clearly do not. A praying mantis almost certainly does not.
A lot in the middle of debatable. Dogs probably have enough. A spider probably doesn't.
But, then a more interesting philosophical debate might be - "what does it mean to want something?"
Until you answer that, we'll come up with many varying answers on what does/doesn't have the capacity to want something.