It is with difficulty kept out by palisading, for if there be a weak place in the wooden framework, the strong snout of the animal is sure to undermine and work a passage through.
As there are always so many of these pigs round about inhabited places and cultivated fields, constant care is required, for they instantly discover an opening.

From their habit of haunting the thickets and bush which come up to the verge of the enclosures, they have obtained the name of thorn-hogs.

Some reach an immense size, and they are very prolific, so that it is impossible to destroy them.

The boars are fierce at a particular season, but never attack unless provoked to do so.

But when driven to bay they are the most dangerous of the boars, on account of their vast size and weight.