Salt

Salt-tolerant plants, astronaut pee, & the evolution of blood

I was looking into salt-tolerant plants for a piece of flash fiction I'm working on. It involves a conservationist trying to keep an invasive, man-eating species out of a local swamp. I wanted to know more about salt to really round out the worldbuilding. So I started digging into stuff like wars over salt, salt-tolerant plants, how animals handle salt.…