1 Pancreatitis. 2  One of the most important, and potentially dangerous, diseases is inflammation of the pancreas. 3  Pancreatitis is a common disease of dogs, and often arises when foods high in fat content are eaten. Pancreatitis is a common disease of dogs, and often arises when foods high in fat content are eaten. 2  It usually causes loss of appetite, vomiting, abdominal pain and depression. 3  In severe cases, the condition can be fatal. 4  Diabetes mellitus.
The molluscs or mollusks /ËmÉlÉsks/ compose the large phylum of invertebrate animals known as the Mollusca. Around 85,000 extant species of molluscs are recognized.Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms.Numerous molluscs also live in freshwater and terrestrial habitats.round 85,000 extant species of molluscs are recognized. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats.
For most mollusk, their shell is external including snails, scallops, oysters, clams and mussels. For other mollusk, like squid, and cuttlefish, they have a internal skeleton similarly to a shell. There are also some that do not have a shell at all, like octopus and slugs, with only a mantle for protection of organs.ollusks have a body without a cavity, has more than two layers of cell layers, tissues and organs. Mollusks are soft bodied animals with three main regions: head, visceral mass, and foot. The head of the mollusk contains the sense organs such as the brain. It has a pair of eyes, a mouth, sensory and nervous structures.