The digestive system of marine mammals consists of the mouth, esophagus, stomach, small and large intestine, colon, and rectum. Accessory organs are also critical for digestive function including the liver and pancreas.  Like other marine mammals, phocids swallow their fish whole. The fish travel down the esophagus to the stomach. Phocids like otariids, have a single stomach (in contrast with cetaceans) and it is lined with thick ridges (rugae) which helps with the grinding function of the food.

Published in Harbor Seal

The digestive system of marine mammals consists of the mouth, esophagus, stomach, small and large intestine, colon, and rectum. Accessory organs are also critical for digestive function including the liver and pancreas.

Published in Harbor Porpoise

Fish anyone? The digestive system of marine mammals consists of the mouth, esophagus, stomach, small and large intestine, colon, and rectum. Accessory organs are also critical for digestive function including the liver and pancreas.

Published in California Sea Lion