Lapahn

Lapahn are big, white, carnivorous snow rabbits from Drum Island. They are the most vicious species of animal on Drum Island.

A baby lapahn attacked luffy and Sanji while they were bringing Nami, who was sick, to the only doctor on the island, but they defeated it easily. But it's parent and other lapahn showed up and gave luffy and Sanji a hard time. They eventually caused an avalanche by hoping up and down, which not only buried Sanji, but the baby lapahn's parent as well. Luffy, while carrying both Sanji and Nami up the mountain, saw the baby lapahn trying to dig up it's parent, and helped it out. The lapahn later returned the favor by holding off Wapol long enough for Luffy to get up the mountain.