A camera system that captures images of the eyeballs of an animal is provided with: a first illumination device that illuminates an eyeball of the animal a fundus imaging camera that captures a fundus image of the eyeball illuminated by the first illumination device a second illumination device that illuminates an eyeball of the animal at the same timing as the first illumination device a pupil imaging camera that captures a pupil image of the eyeball illuminated by the second illumination device and an output circuit that outputs the fundus image as identification information of the animal, and outputs the pupil image as biological information of the animal corresponding to that identification information.
