Todes refers to these surgically-altered subjects as “dog technologies,” which enabled researchers to measure the production and composition of digestive juices produced under various ...
The only problem is digestive juices in their stomachs aren’t strong enough to break down bones and fur, so instead, all that tough stuff gets compressed into pellets inside the owl’s gizzard ...
The esophagus empties into the stomach, a large, muscular chamber that mixes food up with digestive juices including the enzyme pepsin, which targets proteins, and lipase, which works on fats.