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Heart disease in dogs can be caused by genetic defects (sub-aortic stenosis, mitral valve defects, septal defects etc.) or by heartworm infection, cardiomyopathy – enlargement of the heart – and poor nutrition (lack of certain nutrients). Older dogs are most likely to be affected by heart disease. If your dog has problems with the spleen […]
Birds migrate in order to avoid the physiological stress of cold weather and to take advantage of distant food resources. Some species migrate a few kilometers while others will travel hundreds or thousands of kilometers. Bad weather systems, predators, and habitat destruction prevent as many as half of migrating birds surviving to their destination. The […]
