SO I'm finally getting around to writing a Caveman vs. Dinosaur piece (long short story, novella). However, I've encountered a problem; It's set in 3rd person POV, but should my prose still reflect the intelligence of the MCs? I have some vaguely deer-like animal being called "A gossamer field beast". But would it be easier/more practical to just call it a deer? I'm thinking that puts the story in a narrated-by-the-discovery-channel kind of a state, which I rather like. But i don't want to give the impression that these Cave-folk have been reading up on their Paleontology. Any thoughts?