I saw something strange on the floor at home and wanted to touch it, but suddenly it started moving: I was horrified when I realized that it was

I saw something strange on the floor in my house and didn’t even realize what it was. It lay motionless, like a piece of bright green plant, a torn-off part of some house vine… or maybe a child’s toy that had fallen off the table.

I stood over it, trying to figure out what it was. The shape was too …