On a dry land where grass turns yellow and droopy,the strong bull is served as a nice bite of beef for an even stronger predator,an attacking lion. Yes,that's the principle of Darwin's theory-the survival of t...On a dry land where grass turns yellow and droopy,the strong bull is served as a nice bite of beef for an even stronger predator,an attacking lion. Yes,that's the principle of Darwin's theory-the survival of the fittest.展开更多
文摘On a dry land where grass turns yellow and droopy,the strong bull is served as a nice bite of beef for an even stronger predator,an attacking lion. Yes,that's the principle of Darwin's theory-the survival of the fittest.
