Features are described for a pellet dispenser. The pellet dispenser be implemented as a complex molded unit to fit within the home cage of laboratory animals (e.g., hanging from a wall of the cage or inside a food hopper of the cage). The pellet dispenser may be contained within the cage or otherwise attached to the cage so as not to take up additional floor space in the cage which should be allocated for the small laboratory animal. The pellets may be gravity or screw drive fed towards an ejector port. At prescribed times during the day, a prescribed number of pellets may be ejected into the animal cage. Additional components of the pellet dispenser include an ejector (e.g., a linear actuator) and pellet hopper.