LATEST: Billy Bob Thornton wants to wipe komodo dragons of the face of the earth.

The actor tells the current issue of Playboy that he's terrified of the hissing reptiles - and has nightmares about them.

He says, "I grew up watching Raquel Welch and all those people being f**king flung around by pterodactyls and s**t."

The movie star was shocked when a LOS ANGELES ZOO representative called up asking him to adopt a komodo dragon.

He adds, "If I could I would fly over there with a helicopter and mow them all down - because they are f**king dragons."