Medieval naturalists had a great appreciation of hoaxes, and they spent a lot of time collecting and studying them. However, they didn't call them hoaxes. Instead, they called them Lusus Naturae, or Jokes of Nature. The term Lusus Naturae described any creature or specimen that defied classification. One famous example was the Scythian Lamb, or Vegetable Lamb. This bizarre creature, which medieval naturalists were sure existed, although they couldn't locate a specimen, was part plant and part animal. It consisted of a lamb from whose belly grew a thick stem that was firmly rooted in the ground. Thus rendered immobile, the creature survived by eating the grass which grew around it. Medieval naturalists labelled the creature a Lusus Naturae because it defied classification, being neither plant nor animal. More >>>

Throughout the Middle Ages, Europe hosted a thriving trade in holy relics. But many of the relics, if not almost all of them, were fake. The relics collected and worshipped by medieval Europeans ranged from the mundane to the truly bizarre. Bones or body parts of saints and martyrs were always in high demand. One church proudly displayed the brain of St. Peter until the relic was accidentally moved and revealed to be a piece of pumice stone. More >>>