Bunny

A  is a young rabbit. In the Death will Come mod, they are a passive mob. They have a rare chance to drop a Rabbit's Foot.

Omninomicon Entry
Apparently their feet make you lucky or something.

Behavior
Bunnies will hop around and will occasionally eat planted carrots. They avoid cliffs high enough to cause damage, and usually avoid water.

Bunnies will run away from the player when approached. They generally do not make any sounds, but emit a loud shriek when attacked.

Taming
Bunnies can be tamed simply by right-clicking them. This will cause the bunny to be placed on the player's head and a naming window to appear. Once named, the bunny will become tamed.

Bunnies can be renamed with a name tag, healed with a carrot, and can be stored in a Rabbit Hutch.

Riding
When right-clicked, a tamed bunny will go on the player's head. The bunny can be removed with Shift. While carrying a bunny, the player will be unable to use anything that requires right-clicking until they remove the bunny. With a bunny on the player's head, the player will receive a slight speed boost that lasts until the bunny is removed.