[Sir Napsalot]

I’ll bet donuts that average cat owners are smarter than the study researcher(s).

[Sir Napsalot]

To prove my previous point, excerpt from the article:

'Unlike dogs and humans, cats have not evolved the complex facial muscles that allow them to make obvious expressions,' she said.

Cats don't need 'obvious facial expression' to communicate their thoughts. Obviously! You will know when they mean business just by looking at their eyes.