In fact, anthropologist Judith Berman has written that a new caveman character has been introduced into pop culture every year ... animation, comic art and bad Halloween costumes.

Peckham Rock, essentially a lump of concrete showing a supposed prehistoric figure pushing a shopping trolley, was smuggled into the venue in 2005. It stayed for three days before staff realised ...

And it does not look like fun. Five days into the experiment, entitled "I, Caveman," the group's nerves are shot, people look miserable and they're more than a bit snippy. "Communicating through ...