sea lion
Birds swallow very small rocks that are used by their gizzards to grind their food.
Sauropods, who were plant-eating dinosaurs, used rocks to grind their food to aid in digestion. These rocks are called gastroliths.
The stomach uses peristalsis and pepsin to aid digestion.
yes some bacteria help aid digestion
The gastrolith is a rock which is found in dinosaur stomachs to grind the food they had swallowed.
it doesn't
Yes.
They aid digestion in the same manner as dermal ridges aka: fingerprints aid in gripping. The same as ridges on the sole of a shoe aids traction.
They aid in digestion
Every part of the mouth aids in digestion. This includes the tongue and teeth. The mouth is responsible for the first part of digestion.
Sedative, to aid digestion, and as an antibiotic.
aid in fertilization by extracellular digestion