In the 1993 film Body Snatchers, a set of aliens invade an Alabama military base and start to replace humans with clones versions of themselves that grow from plant-like pods. The idea makes a good sci-fi film, but for the director of the Origins Institute at McMaster University, Ralph Pudritz, the idea that aliens may resemble humans isn’t so far fetched. In Pudritz’s recent theory, he believes humans and aliens may share the same DNA. The theory is based on existing research about amino acids that have 20 standard chemicals that contain DNA that can develop human life. Of those 20 there are 10 that researchers have confirmed existed millions of years ago and can be formed without life. Read more: http://www.thespec.com/feature/article/741810--we-could-share-dna-with-aliens-mac-prof
