No, I never studied biology, clearly.

So if not clothing, then what would you call it?

I'm not saying animals definetly DO have higher intellect, I'm just not sure how you would prove that higher primates, for instance, don't possess such intellectual faculties.

I'm undecided on aliens, given the scarcity of scientific evidence. Probability alone would suggest that they do exist, but how could you ever prove or disprove their existence?