A beaver, tracked down by the dogs on the river banks, is trying to fight them of by putting its sharp claws around the head of one dog while exposing its teeth to the other dogs. Etching by J.E. Ridinger.

Licence: Public Domain Mark

Credit: A beaver, tracked down by the dogs on the river banks, is trying to fight them of by putting its sharp claws around the head of one dog while exposing its teeth to the other dogs. Etching by J.E. Ridinger. Wellcome Collection. Source: Wellcome Collection.