Somewhere in the vast North Pacific Ocean, there is a singular whale singing a unique song, which was first recorded in 1989. For close to thirty years, researchers monitoring anti-submarine hydrophone arrays have heard a whale call which is much higher than the calls of other large whales. While most blue whale calls are around 10–25 hertz and fin whales tend to be around 20-hertz, this whale has been calling at 52-hertz. If most blue and fin whales are singing bass, this whale is an alto, at least by whale standards. 52-hertz is just higher than the lowest note on a tuba.
Scientists do not know even what type of whale it is. The whale’s movements have been similar to a blue whale but the timing of its calls are similar to fin whales. Scientists at Woods Hole Oceanographic Institute speculate that it could be malformed, or a hybrid of a blue whale and another species.
The whale has been nicknamed the 52-hertz whale as well as Blue-52. Continue reading

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