An animal tracking device removably attachable to an arrow and including an antenna, a controller, a battery for powering the controller, a housing for housing the antenna, controller, and battery, and an animal attachment component fixed to the housing. The controller may transmit wireless signals to a receiver via the antenna. The housing may have a first and second portion pivotally attached at a first joint. The first and second portions may also meet, but not attach with each other, at a second joint in a closed position. The first and second portions may pivot between the closed position and an open position about the first joint, may be naturally biased in the open position, and may be detachably attached in the closed position to the arrow shaft. The animal attachment component may attach to an animal shot by the arrow, forcing the housing away from the arrow.