Facial hair a different colour to that on your head? We stroke our beards to ponder why. Plus we ask, what happens when you get swallowed by a whale? Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

What would happen if you were swallowed by a whale?

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...