The flight species typically produce noises of less than 1,500hz and are what is known as “acoustically cryptic” as a predator avoidance strategy from killer whales. “The fight and flight ...

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Acoustically Speaking – A 20 Year Friendship is a brand new show featuring the two Broadway giants, coming together to celebrate music, stories and their friendship. An intimate show ...

They could hear, probably, the sound of the blow, or the sound of them splashing, but as soon as you get beyond the range of that it’s like they’re completely acoustically invisible.