Newt on Porlocks

Description of a Porlock from the Fantastic Beasts textbook

It walks on two cloven feet. The arms are small and end in four stubby fingers. Fully grown Porlocks are around two feet high and feed on grass.

The Porlock is shy and lives to guard horses. It may be found curled in the straw of stables or else sheltering in the midst of the herd it protects. Porlocks mistrust humans and always hide at their approach.

Fantastic Beasts and Where to Find Them

By J.K. Rowling