Social Science Questions & Answers

Social Science Questions & Answers

Why do dogs have a better sense of smell than we do?

Dogs have a better sense of smell than we do because the physical structure of a dog is better adapted for scenting odours. In dogs this sense has remained keen, while in man it has become comparatively dull. Dogs use scent in feeding, detecting enemies, recognizing mates and offspring and in rivalry. The chemical sense of smell is called chemoreception …

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Why do Cats Always Land on Their Feet?

When someone falls from the fourth or fifth floor, and survives, we call it a miracle. When a cat falls from that height, we watch astonished as it lands on all fours, pauses, then straighten up and walks away looking just a little fazed. What would you call this, a miracle or God’s grace? Any guesses why cats survive while …

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Why do butterflies and moths have ‘powder’ on their wings?

The ‘powder’ on the wings of moths and butterflies is really a layer of any, colored scales, which overlap each other almost, like the tiles on a roof. If you touch the wings with finger the “powder” is rubbed off, leaving the wing more or less transparent and colorless. The scales are generally like the shape of a hand tapered …

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Why do birds preen themselves?

Birds preen themselves to clean and waterproof their feathers, to maintain their general health and to keep them lying smooth and neat. This preening or grooming starts as the nestling’s feathers are breaking out of their sheaths. The young bird spends a great deal of time combing the feathers with its bill and freeing them from bits of sheath and …

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Why do Beavers Build Dams?

There are two kinds of beavers: the American and the European. The European beaver, found in Norway, Poland, Germany and France, lives in burrows. But the American beaver builds a dam across a stream or lake to construct his home or lodge. The lodges are made of huge logs of trees. The American beaver constructs solid dams and lodges because …

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