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188 海豚的声纳系统
P1:海豚用声纳detect prey,因为声音传播很快so dolphin的大脑must be well adapted so to make rapid analysis of echoes information
P2: all dolphins have this ability
P3:click. melob acts as a lens
P4:panbone-lower jaw-fatty tissue-middle ear-brain. recently:teenth&mandibular nerve may transmit additional info to dolphin’s brain
P5: echo received: dolphin generates another click. time lapse-evaluate distance&direction, so can track object
P6: echolocation system is extremely sensitive and complex. feat(技艺,功绩)that human sonar experts gasping(渴望) |
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