If you watched this year's edition of "Hard Knocks" on HBO, you probably remember the ongoing storyline of Williams Hayes not believing in dinosaurs.
Hayes made his thoughts about dinosaurs clear before "Hard Knocks," but obviously HBO is a larger platform. Adding to the hilarity of him thinking archeologists just "created a T-Rex" by burying bones in the ground, Hayes does believe in mermaids.
HBO tried to make Hayes believe in the Triassic period mammals with a museum visit, but it didn't work. On Thursday night, "Jimmy Kimmel Live" tried to do the same thing, and the host hoped he would have had a better chance at changing Hayes' mind.