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150.非洲猫鼬
P1 - Researchers AT and KM observed populations of meerkats and tallied over 2000 occasions in which adult meerkats prey for pups.
65% of the prey presented to the youngest pups were alive.
90% of the prey given to the oldest pups were alive.
They hypothesized that adult meerkats use this to teach the pups to kill their prey.
P2 - Two experiments to confirm the hypothesis:
1/ the researchers played recordings of the begging calls of meerkat pups to foraging adults.
=> the younger the sound of the call, the greater the percentage of killed prey they presented
2/ the researchers gave one group of meerkat pups meals consisting of live scorpions with stingers removed, and gave another group meals of hard-boiled eggs. After 3 days, all the pups were given live scorpions.
=> those received live scorpions earlier subdued, whereas 2/3 of those received eggs did not.
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