| 
 
UID783519在线时间 小时注册时间2012-7-19最后登录1970-1-1主题帖子性别保密 
 | 
| 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.
 
 | 
 |