This week we ponder potatoes! You can bake a potato, boil a potato, fry them, chip 'em and roast 'em. But CAN YOU MELT one? Plus we ask, why do fungi bother to produce hallucinogens? Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Why do certain fungi produce hallucinogens?

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...