1 vote Vote for this answer. Hippos are one of the other animals (like humans) that will sunburn. Thus, when they sweat, the pigment in their sweat (which is red-orange) is an antibiotic sunscreen. http://www.sciencenews.org/articles/20040529/fob5.asp.
What is Gastroenterology? Gastroenterology is the study of the functions of the digestive tract including esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver. This includes such conditions as acid reflux disease, colitis, colon polyps and ulcers.
Gastroenterologists have extensive training in the diagnosis and treatment of conditions that affect the esophagus, stomach, small intestine, large intestine (colon), and biliary system (e.g., liver, pancreas, gallbladder, bile ducts). Gastroenterology is a subspecialty of internal medicine. Gastroenterologists have a thorough understanding of how food moves through the digestive tract (called motility) and the physical and chemical break down of food (digestion), including the absorption of nutrients and the removal of waste products.