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When horses eat, the food is swallowed and passes down the esophagus into the stomach. There is a strong band of muscle called the cardiac sphincter around the esophagus at the stomach entrance. While all mammals have the cardiac sphincter which is a valve, it is different in horses for these reasons. It is extremely […]
New DNA evidence seems to point to the fact that both dogs and wolves have evolved from large wolf-like canines that have been extinct for thousands of years. This could mean that while they are related, the dog’s ancestor is not the wolf. Dogs have been domesticated for thousands of years. They’ve been bred by […]
