Blue Whales Are Singing In Lower Voices Every Year And Nobody Knows Why

A blue whale, the largest animal that every lived (on earth)

But if you guessed that Global Warming might be one of the reasons, you guessed right…but I’m getting ahead of myself.

Scientists at the Scripps Institute of Oceanography have been recording blue whale songs as far back as the 60′s, and

have found the tonal frequency of the songs has reduced by fractions of a Hertz every year. This has been true even though the songs differ in different oceans and the populations seem quite distinct from each other. In the most studied populations, those off California, the pitch has reduced by 31 percent during the period.

Possible reasons: noise pollution, new mating strategies, and changing blue whale demographics. But scientists remain unconvinced that any of these are truly the reason for the lower singing voices. It’s a mystery.

Read more about it here.