You could mistake this week's critter, the giant puffball (Calvatia gigantea), for a soccer ball. The giant fungus can grow into a puffy white ball up to 50 cm in diameter! Giant puffballs are also ...

"A giant puffball is the most easily recognisable 'forageable' mushroom," she said. "It looks like something from another planet, they are so weird." The amateur mycologist explained she knew what ...