The Boar has 75 hitpoints, and is more difficult to kill than Deer. It is almost essential that villagers take it on in groups, as the life of the lone villager would be compromised attacking it.
The Wild Boar provides 350 food, considerably more than most huntable animals.
A powerful variant of the Wild Boar appears in the Hunnic campaign, known as the Iron Boar. It has 750 hitpoints, and Attila and his brother Bleda go to hunt it.
The Javelina is a Meso-American version of the Boar, identical in all but name.