Hand holding an intact kina (or New Zealand sea urchin)
Rights: Natalí Delorme – licensed under Creative Commons Attribution ShareAlike 3.0 Published 10 May 2011 Size: 130 KB Referencing Hub media

An intact kina (or New Zealand sea urchin), still with spikes, meaning that is alive. Kina are some of the noisiest species found on New Zealand reefs.

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    Underwater acoustics – timeline

    This timeline gives key dates relating to the key developments in underwater acoustics. 1490 – First reports Leonardo da Vinci writes the first reports of listening to sound under water. “If you ...

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    Noisy kina

    Kina are a particular species of sea urchin endemic to New Zealand. Most of us can identify a kina shell found on a beach as a mottled green globe (sometimes intact) with a hole in the base. When ...

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