№ 1 A fox, running from a dog, following it, often survives by making quick movement to the side just at the moment the dog is ready to catch it. Why is it difficult for a dog to catch a fox?

It is known that snakes don’t have an inner ear. № 138 It is known that snakes don’t have an inner ear. Then how do they feel sound vibrations?

№ 351 Why do the most animals of the Far North have the white colour and those who have another colour, like a squirrel or a rabbit, change it to white in winter?

№ 10 Explain why a sportsman lands on bend legs at the end of the leap (jumping)?

№ 142 In the forest it is quite difficult to understand where the sound comes from. Why?

Who warms more in the sun: a sunburnt or an untanned man? № 354 Who warms more in the sun: a sunburnt or an untanned man?

№ 18 Why does a running man who wants to turn a column or a tree very fast, holds it with a hand?

How do wild ducks get warm in freezing temperatures? № 185 How do wild ducks get warm in freezing temperatures?

Why does a squirrel need a big tale? And a fox? № 21 Why does a squirrel need a big tale? And a fox?

When a man is cold he begins shaking, why? № 202 When a man is cold he begins shaking, why?