Humans have supervised the development of a single species into several different species. We say that it's a "species" if it can breed and reproduce successfully together. Now, let's take an example:
![[Image: main-qimg-606b0b45ee0fb53ad4fce3dfa6367c2c-c]](https://qph.ec.quoracdn.net/main-qimg-606b0b45ee0fb53ad4fce3dfa6367c2c-c)
Just like trying to cross a Smart car and a Peterbilt, the parts don't fit.
Just like trying to cross a Smart car and a Peterbilt, the parts don't fit.