So now you know how scientists describe you. There have been other creatures who were very similar to humans. A long time ago, another species existed called Homo erectus . Very, very close to your species, but just a little different. Physically, they were a little more hunched over.
Scientists know they existed because they have found skeletons buried in the ground.
If you remember about what makes a species, two different species cannot have babies that are fertile. So, if you use deductive reasoning , that means that Homo sapiens and Homo erectus probably could not have had babies that were fertile. Two different species can not have fertile offspring. Therefore, Homo sapiens and Homo erectus could not have had fertile offspring. Andrew Rader Studios, All rights reserved.