News Anthropology Evolution’s DNA Fusion: Hybrid gene forms clue to human, ape origins By Bruce Bower February 19, 2003 at 6:09 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print A gene of mixed evolutionary pedigree may have transformed mammalian reproduction, leading to the evolution of apes and humans. Analyses of genetic data from a variety of mammals show that this gene, called Tre2, occurs only in apes and people, say graduate student Charles A.