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 having rectangular form and loosely resembling rhinos that live on the Crown Island. When they lie on the ground, it is very easy to mistook them for rocks.