mornelithe on 14 February 2016
Technically, the roots of life on this planet 'could' have originated from another place. The hypothesis of Panspermia has been around for quite some time, and is supported by the existence of certain bacteria's on Earth that have extreme resistances (also referred to as extremophiles) that they have no evolutionary reason to have gained otherwise (ergo, travel through space would've required a resistance to radiation, extreme cold etc and the levels of their resistance exceed the extremes on Earth).
It's an interesting concept, though, as has already been stated, Humans did not evolve from Apes.
