Animal Species/Other

Horn Eaters
Horn Eaters (ツノクイ, Tsuno Kui) are a type of creature featured prominently in the third One Piece movie. They are large herbivorous armadillo-like rhinos. They are used by Butler to herd the various other horned animals on Crown Island in order to chop their horns off.

Trumpet Pig
Trumpet Pig is a weird pig living on the Crown Island.

Square Rhinos
Square Rhinos are animals with a rectangular form and loosely resemble rhinos that live on the Crown Island. When they lie on the ground, it is very easy to mistake them for rocks.