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150.非洲猫鼬
P1:an phenomena about meerkats and the hypothesis
・give youngest pups→65% alive;give oldest pups→90% alive
・hypothesis: teach to kill the prey
P2:2 experiments to verify the hypothesis
・to the adult: the younger sound of the call, the greater the percentage of killed prey presented
・to the pups: alive food v.s. eggs → the pups eat alive food can subdue the live animals, but 2/3 of pups that eat eggs can not
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