Hedgehog bite marks on each side of a chewcard.
The top image shows the crushing marks made by the two blunt incisor teeth at the front of the lower jaw. The bottom image shows the smaller oval marks made by the two sharp canine teeth near the front of the upper jaw.
The teeth within each pair of teeth are positioned at nearly right angles to each other.
Photograph: courtesy and © Manaaki Whenua – Landcare Research