Bullbo

Bullbos are boar-like creatures from The Legend of Zelda series.

The Legend of Zelda: Twilight Princess
Bulblins commonly use Bullbos as mounts for transportation in Hyrule. However, in Gerudo Desert, a dead Bullbo is being cooked over a fire, which implies Bulblins may use them for food as well. After removing Bulblins from their Bullbos, Link can ride the Bullbos like he would Epona, except Bullbos can ram structures such as wooden gates or towers, effectively decimating them. Bullbos are more difficult to control, and can only be stopped by a very solid object if they are prompted to run. They require two hands on the reins, so Link cannot use objects while riding them.

The Bullbos are unable to be killed through means of blade, yet striking them with a sword can cause them to run away, even causing them to jump off cliffs. What looks like the leader of the Bullbos is Lord Bullbo, the mount of King Bulblin.

Interestingly, unlike other animals in the game, Link cannot talk to Bulllbos while in wolf form.

The Legend of Zelda: Spirit Tracks
Bullbos appear as an enemy that roam around near train tracks. They have a similar appearance as they did in Twilight Princess. Additionally, there are Bulblins that ride on top of a Bullbo. If they are on the tracks, Link can pull the lever on his train that will send out a loud noise which will scare the bullbo off the tracks. Alternatively, Link can shoot two cannonballs out at the Bullbo to defeat the enemies. If Link's train runs into the Bullbo, the train will take damage.