The transmission of data from one computer to another, or from one device to another. A communications device, therefore, is any machine that assists data transmission.
In dogs, thyroid disease is almost always hypothyroidism. Hyperthyroidism (overactive thyroid) occurs in cats but is not typically seen in dogs. Unfortunately, an overactive thyroid in a dog is usually a sign of thyroid carcinoma, a cancerous thyroid tumor.
Sick Dog Symptoms at a glance. 1  1Dogs tell us when they are sick through behavioral changes and physical symptoms. 2  2Common symptoms of a sick dog include vomiting, diarrhea, lethargy, lack of appetite, and more. 3  3If you ever suspect that your dog is sick, contact your veterinarian right away.