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Meleagris | 1 year ago
It turns out the Ocean is fascinating, and I learned something crazy:
"Between 1950 and 1973, world fish harvest trippled, but the amount of fish directly consumed by humans stayed the same. The rest went into fishmeal, as a supplemental food for livestock, and this became an essential ingredient for modern industrial farming".
I didn't realize that fishmeal was a primary input to modern animal agriculture. Global fish stocks collapsed not only because people ate fish, but also because of animal agriculture in general. It's fascinating how it's all connected.
Also, sea turtles cry 8 litres of tears an hour.
Needless to say, this book ended up as a permanent fixture on my bookshelf.
bob_theslob646|1 year ago
"Turtles cry because they’re eating.
No, really! The example that Czerski uses is a turtle eating jellyfish. Less than one percent of jellyfish is organic material and a turtle (the author uses a leatherback as an example) must eat 80% of her body weight.
Jellyfish have the same salinity as the ocean itself, so as you can imagine, this results in a TON of salt being ingested by turtles.
It’s not just jellyfish, either. Other marine substances and creatures have the same salinity as the sea. For example, algae.
To avoid ingesting all of this salt (which would kill the turtles), they expel it back out in the form of tears."
https://kookaunty.com/kook-aunty-blog/3vnblbkjnil2txo7jevy1u...
https://www.researchgate.net/publication/316669935_Crying_a_...
That was such an obscure fact that I had to look it up. Wow wild. Thanks for sharing.