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ANIMALS AMAZING WAYS

                                             Nature’s creatures often exhibit impulses of self-assertion and competition. But all through life’s vast range, these instincts are balanced by another kind of drive. Nature does not implant in her children just the single message: Take care of yourself. Ancient and universal, there is a second injunction: Get together. It is as vital as the breath of life.       Every creature has a need for companionship as biologically important as food and drink. Testing tadpoles, zoologists have found that even these humble creatures are so deeply influenced by social need that a solitary tadpole can regenerate an injured part of the body only slowly, but if it given the dimly sensed comradeship of fellow tadpoles its healing powers speed up almost miraculously. University of Chicago scientists have discovered that when mice are raised in contact with fellow mice they grow faster than mice reared on an identical diet in isolation.      Anima