Move over, fireflies – there’s a new bioluminescent star in town. The Bitter Oyster has clearly just topped up its own Oyster card, zipping between Asia, Australia, Europe, and North America – but it’s only the strains from North Eastern America that shine bright.

While other mushrooms are busy being beige background extras, she knows she’s the main character, glowing with the light of a thousand Hollywood signs. It's all a front, though – underneath, this mushroom’s a fuzzy nerd, draped in tiny hairs like it’s wearing a cosy sweater, just looking for a quiet night with tea and Countdown.

It might not be poisonous, but the Bitter Oyster is a natural laxative. So, if you’re looking for something to help you "move" on, this mushroom’s it!