Jimmy Kimmel tries to prove dinosaurs are real to Rams lineman William Hayes

Los Angeles Rams defensive lineman William Hayes believes not only that dinosaurs never existed — but that they're a total hoax perpetrated by archaeologists who planted massive bones in the ground and later dug them up.

“No, I don't believe dinosaurs existed,” Hayes once said. “Not even a little bit. With these bones, it's crazy because man has never seen a dinosaur, we can agree on that, right? But we know exactly how to put these bones together? I believe there is more of a chance you will find a mermaid than you will a dinosaur because we find different species in the water all the time.”

Make of that what you will. So, now that the Rams are back out west, the host of the Los Angeles-based “Jimmy Kimmel Live” took Hayes on a field trip to the Natural History Museum to challenge his beliefs about dinosaurs. It was enlightening, to say the least. Hayes hasn't completely come around on dinosaurs … but now he believes in unicorns.