Ocean Life Navigates by Sound, Not Light

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Just spotted this passage in my fellow blogger Julia Whitty’s book, The Fragile Edge:

Humans live by light, which travels fantastically well in air and in the trillions of miles of the blackest vacuum of space, yet barely penetrates three hundred feet into the water. As a result, we know more bout the surface of the moon than about the deep oceans; and precisely because the seas are largely dark, we mistake them for mysterious, when in fact they are as full of information as they are of water — much of which we cannot register let alone understand. We may not be well-equipped to listen in, but the underwater world is an ideal conduit for sound, with the oceans divided into layers that speed or hamper sound’s travels depending on temperature, salinity, chemistry, and pressure.

Wow.

Did you know that NASA’s budget is around $16.8 billion, but the National Oceanic and Atmospheric Administration’s budget is less than $3.8 billion?

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THE TRUTH...

is the first thing despots go after. An unwavering commitment to it is probably what draws you to Mother Jones' journalism. And as we're seeing in the US and the world around, authoritarians seek to poison the discourse and the way we relate to each other because they can't stand people coming together around a shared sense of the truth—it's a huge threat to them.

Which is also a pretty great way to describe Mother Jones' mission: People coming together around the truth to hold power accountable.

And right now, we need to raise about $400,000 from our online readers over the next two months to hit our annual goal and make good on that mission. Read more about the information war we find ourselves in and how people-powered, independent reporting can and must rise to the challenge—and please support our team's truth-telling journalism with a donation if you can right now.

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