According to the American Heartworm Society, coughing, difficult breathing, fatigue, vomiting and loss of appetite are common symptoms of heartworms in cats. Cats can die suddenly after being infected with heartworms eve... More » Pets & Animals Pets Cats

Photos of gastrointestinal parasites can be found in academic veterinary textbooks or through reputable education websites. After doing your own research, findings should be confirmed with a veterinary professional to se... More » Pets & Animals Pets Cats

PetMD and Petfinder are some sites that post pictures of different breeds of cats. The sites provide images and descriptions of more than 30 cat breeds. Petfinder, being a pet adoption site, also includes pictures and in... More » Pets & Animals Pets Cats

Symptoms of heartworms in dogs include a decrease in appetite, weight loss, fatigue after moderate activity, a reluctance to exercise and a mild, persistent cough, according to the American Heartworm Society. As heartwor... More »

Symptoms of tuberculosis include a loss of appetite, unplanned weight loss, coughing for three or more weeks or chest pain when coughing or breathing, according to Mayo Clinic. Some people with tuberculosis may experienc... More » Health Pain & Symptoms

Some symptoms of a weak heart include difficulty in breathing, general body weakness, irregular heartbeat, nausea, loss of appetite, impaired thinking and swelling in certain body parts. A weak heart normally leads to he... More » Health Conditions & Diseases Cardiac Health

Symptoms of a toxic liver can include jaundice (yellowing of the skin and eyes), itching, pain in the upper right abdomen, fatigue, loss of appetite, nausea and vomiting, weight loss and dark urine, says Mayo Clinic. Not... More »