Further Proof,

if any were needed that cats make scientific experiments,

look along the top of this highly esteemed paper, and notice the paw print, in 1975 Jack Hetherington wrote a physics paper called Two-, Three-, and Four-Atom Exchange Effects in bcc 3He, His co-author has since become famous in science circles, because he was a cat, and that came about because giving him credit was easier than re-typing, before sending it to the Physical Review Letters, Hetherington noticed he’d been using the pronouns “we” and “us” throughout the paper, even though he was the sole author, instead of editing the piece—which was written on a typewriter—Hetherington cleverly added his cat as co-author, 

and here he is, F. D. C. Willard, as an aside we have mentioned before the scientific nature of our kittens and here are a few examples of others 'experimenting' and how did Willard get his name? have a look here.