丸-夸題為題組
The undersea world isn't as quiet as we thought aceording toa New Zealand es, archer
Fish ean "talk" to each other and make arange of及 。 by vibrating their swim bladder as
jnternal gas-filled organ used as aresonating ehamber to produce orreceive sound.
生 Fish are believed to speak to each other for a number of reasons, sueh as to attraet mates
seare of predators, or give direetions to other fish. Damselfish, for example, have been fount
呈 to make sounds to seare ofF 及 fish and even divers, Another diseovery about fish soundsi
that not afish are 一及一 全ve Some speeies talk alob while others donmtu_ The mama
speeies hasa wide vocal repertoirg and keeps up aconstant ehatter_Codfish, 吧
keep siJenf, except when they are Jaying eggs. Any
conversation with their pet goldfish is太
,usualty
Eldfish lover who hopes to strike upa
Goldfish have exeellent hearing, but they dont
ing ismt ssociated with Yoealization
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Dbeing threatening
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on the other hand