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1. Their smelling sense is approximately 40 times better than human beings.
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2. Some dogs also have such good noses that they can sniff out medical problems.
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3. Some dogs are speedy, and they can even challenge a Cheetah in a race, e.g., Greyhound.
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4. The Dogs don't sweat as we people do. They used to keep them wet for coolness.
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5. They possess strong noses and their hearing power is also very sensitive.
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6. 18 muscles control a dog's ears. They can hear from a distance of 2 km also.
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7. Dogs are smart, intelligent, social, and loyal to their family members and owners.
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8. A female dog can give birth to a litter of 4-8 pups. Some females are seen to have more than 12 pups also.
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9. Some dogs are incredible swimmers. They can swim up to a distance of 4 km continuously.
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