1. An animal type determination device comprising: a camera configured to be mounted in a vehicle and to capture an image of a periphery of the vehicle; and a controller configured to: perform pattern recognition with respect to the image captured by the camera using a plurality of pre-stored animal image patterns and determine a type of an animal in the image; recognize a type of a caution target animal indicated by an animal warning sign in the image captured by the camera; and raise a determination priority of an animal image pattern corresponding to the type of the caution target animal in response to the type of the caution target animal being recognized, wherein the controller is further configured to perform the pattern recognition using the plurality of pre-stored animal image patterns in the order of the determination priority, and to determine the type of the animal in the image.