Earthworms do not have teeth, so they use the strong muscles of the gizzard (and grains of sand and soil) to grind up their food.
Acknowledgement: Sara L Roggemann, Three Flowers Photography
Earthworms do not have teeth, so they use the strong muscles of the gizzard (and grains of sand and soil) to grind up their food.
Acknowledgement: Sara L Roggemann, Three Flowers Photography