This week we find out if we there will ever be a real life Dr Doolittle. And sticking with expressing ourselves we ask - was prehistoric art restricted to caves? Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Was pre-historic cave art only done in caves?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...