Signs and symptoms of the chronic phase of Chagas disease may occur 10 to 20 years after initial infection, or they may never occur. In severe cases, however, Chagas disease signs and symptoms may include: 1  Irregular heartbeat.2  Congestive heart failure. 3  Sudden cardiac arrest.4  Difficulty swallowing due to enlarged esophagus.igns and symptoms of the chronic phase of Chagas disease may occur 10 to 20 years after initial infection, or they may never occur. In severe cases, however, Chagas disease signs and symptoms may include: 1  Irregular heartbeat.
Behind the octopus's head, directly opposite the arms, is its mantle. The mantle is a highly muscled structure that houses all of the animal's organs. Its gills, hearts, digestive system and reproductive glands are all crammed into this one space.
While the octopus can and does eat fish (even small sharks), it feeds mainly on crabs (as well as other shelled inverts) and needs that short crushing beak. Squid beak (left) is for tearing. Octopus beak (right) is for crushing.Look like parrot beaks. Octopus eye facts. 1  They have 2 eyes with excellent vision.hile the octopus can and does eat fish (even small sharks), it feeds mainly on crabs (as well as other shelled inverts) and needs that short crushing beak. Squid beak (left) is for tearing. Octopus beak (right) is for crushing.