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11. 大象和蜜蜂
Alarm 警报 associated联系 retreat撤退 flee逃跑 acoustic声学的 trigger 触发 hypothesis假设
identical 完全相同 response反应 clues线索
第一段:
Elephants produce and alarm call and retreat when a call is played even no bees around.
The team discovery: elephants flee from: buzzing sounds, rumbling call and shaking heads.
第二段:进一步的发现
- The recorded call trigger the elephant’s decision to flee.
第三段: 更多的实验结果
- Elephants fled from the louder speaker.
- They more further when they heard bee alarm.
第四段:
- Researchers idea: such calls is an response to a threat.
- Need to confirm: rumble calls is used for other threats?
第五段:more clues
- Elephants pay produce sounds in the same way. Same sounds but different meanings.
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