Rabbit

Rabbits, also known as Bunnies, are a recurring race of animals in the Legend of Zelda series. Similar to their real world counterparts, rabbits are depicted as small, furry creatures with long, floppy ears.

The Legend of Zelda: A Link to the Past
When Link enters the Dark World, his shape changes from that of a Hylian to a pink bunny, this due to the fact that when in the Dark World, one who does not hold the Moon's Pearl will be transformed into a shape reflective of their true, inner selves. In this form, he is unable to use weapons of any kind, and is essentially helpless. This first occurs on Death Mountain, where Link finds a Dark World Portal that helps him get onto a previously unreachable plateau in the Light World's Death Mountain. Inside the Tower of Hera, Link finds the fabled Moon Pearl and is thus able to retain his shape during subsequent excursions into the Dark World.

Despite having the Moon Pearl however, there are traps found throughout dungeons that will transform Link into Bunny Link temporarily when he is hit by one. Enemies called Rabbit Fangs appear in the Swamp Ruins. They are depicted as mutated, hostile rabbits. Some friendly Rabbits can also be found in the Lost Woods and the Haunted Grove.

The Legend of Zelda: Link's Awakening
Several rabbits inhabit Animal Village on Koholint Island. When Marin comes to visit, they go to see her sing.

The Legend of Zelda: Ocarina of Time
The Running Man is infatuated with rabbits, who appear to have been rendered nearly extinct. Along with the fact that rabbits are never seen, this idea is furthered by the fact that the Running Man tells Link that they are a rare sight nowadays due to excessive hunting in Hyrule. Because of this, the Running Man will purchase the Bunny Hood from Link to live out his lifelong dream where he wishes to "Listen to the wind with those ears, hop across the ground with those legs... Even if [he] can only pretend."

The Legend of Zelda: Oracle of Ages
Several rabbits appear in the Forest of Time along with many other types of animals. When Veran possesses Nayru and changes the flow of time, many of these rabbits disappear, as the disruption of the flow of time prevents them from ever being brought into existence.

The Legend of Zelda: Spirit Tracks
Rabbits are set to appear. When Link is riding the Spirit Train, Rabbits occasionally hide behind rocks. Link can destroy these rocks with the Spirit Train's Cannon and attempt to catch them with a net. When a Rabbit is successfully caught, they can be returned to the Rabbitland rescue for a reward.