Mammals

Cave bear tooth

Cave bears, the best known being Ursus spelaeus, lived across almost all of Europe in the Pleistocene, dying out around 27,000 years ago. They were similar to brown bears, though on average a little larger. These teeth were found in huge cave systems, alongside skeletal material. It's thought they spent longer in caves than their surviving relatives, hence the name. Better than renaming brown bears Outside bears. 

Approx. 2.5cm across crown