Wild boar live in family groups called 'sounders'. A sounder is usually a few mums and all their piglets, led by the oldest female. The males usually live by themselves and only join the group at certain times of year. Piglets are striped brown and cream when they are little - which helps them hide in the leaves.
Their long snout is one of the strongest noses in nature. They use it to dig up roots, mushrooms, acorns and bulbs. A boar can flip up a chunk of grass the size of a doormat with one push of its snout. In some French forests, you can spot where a sounder has been by the patches of churned-up earth.
Wild boar are surprisingly smart. They have been seen using tools - one in a wildlife park figured out how to use a stick to dig with. They also have an excellent memory for places, and can find the same berry bush months later, even in a huge forest.
Boar are very good at adapting. They can live in cold mountains, hot scrubland, near rivers, in farmland and increasingly in towns. There are now more wild boar in France than there have been for hundreds of years, partly because the forests have grown back since people moved into cities.