There are a lot of obstacles in the way of our understanding animal intelligence - not the least being that we can't even agree whether nonhuman species are conscious. We accept that chimps and dolphins experience awareness we like to think dogs and cats do. But what about mice and newts? What about a fly? Is anything going on there at all?
I love Westerns and I remember as a kid climbing up on the couch and make it into a saddle and shoot guns and fall off. I would lay there after my death and my mom would tell me to eat lunch and I'd say 'I'm still dead Mom!' I was Method even then.