I sealed polluted drain water inside a jar for 100 days, creating a closed aquatic ecosystem filled with life. Over time, ...

This TikToker made an ecosystem jar four years ago. When she finally saw it again, she was surprised to see what was growing—or rather, moving around—in it. In a wildly viral video with more than 40 ...

Years ago, this TikToker did an experiment where he put some water and other things in a jar and sealed it up to see what would happen. Well, it has been a while, and he came back to check it and ...