What Aliens Would Look Like
The only life forms we know are from Earth. We think of aliens as little green men, with big eyes and large heads. In reality, alien life could be totally different.
For example, life that evolved on a dark planet might not have eyes and they could be using other ways of communication, such as bats, which use ultrasonic sounds to find prey. Mr. Scientific brings us an interesting view of what aliens might really look like.