What Is Unusual about Lemmings?
What Is Unusual about Lemmings? The strange thing about lemmings is the way they, apparently, commit mass suicide. These grey or reddish-bro
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Swim
How Can Polar Bears Stand Cold Water?
How Can Polar Bears Stand Cold Water? Despite arctic cold, the polar bear can swim in freezing water or walk about wringing wet, and still s
Why Don’t Fish Sink?
Why Don’t Fish Sink? Fish have adapted to life in water. They are able to move in water, of course. Their body density is slightly smaller
How Do Snakes Move?
How Do Snakes Move? Despite the fact that they have no legs, snakes are able to move and get along very well indeed. Most snakes slither alo
Why Do Fish Swim in Schools or Shoals?
Why Do Fish Swim in Schools or Shoals? Some fish swim alone; others stay in groups known as “schools” or “shoals”. A school of fish