Truffles are rare, highly prized fungi known for their earthy, intense aroma and rich flavour. Found underground, they take years to mature. Traditionally, pigs were used to find truffles, but dogs ...

Why are some fungi helpful and others harmful? asks Paul Glaister from Reading. Rutherford and Fry try to outdo each other with fungal top trumps in their attempt to find the answer. As Hannah ...