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A Tiny Sea Ecosystem in a Jar

posted by Jason Kottke   Aug 26, 2019

I don’t know about you, but I found it extremely difficult to not watch something called “A Year Ago I Put Saltwater in a Jar, This Happened”.

Last year, this YouTuber put some seawater, sand, and a few small plants in a large jar and sealed it up and over the course of the next year, a number of surprising things occurred in this closed ecosystem.

The ecosphere has housed crabs, starfish and a lot more and is currently still housing a lot of crustaceans, paramecium, worms, other invertebrates and even spionid worms.

So cool — there are allll sorts of things in ordinary seawater and sand. See also The Solitary Garden.