anatomy

Why Can’t Humans Grow Wings?

Why Can’t Humans Grow Wings?

Humans are animals that have backbones. This means we’re in a group called “vertebrates” – along with fish, amphibians (such as frogs), reptiles, birds and mammals. A long time ago, humans weren’t around. We actually came from 500-million-year-old fish that had no arms, legs or jaws. But slowly, from one…