The clumsy ones must die. Eagles and hawks, in like manner, 

 teach their young to capture swiftly moving prey by dropping 

 food to them in mid-air. If one fails to catch it the parent swoops 

 down and seizes the hard-won meal before it reaches the ground ; 

 then mounting aloft with it, drops it once more, till, at last the 

 required dexterity is gained. 



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