Some genes 'foreign' in origin and not from our ancestors

Some genes 'foreign' in origin and not from our ancestors

http://feedproxy.google.com/~r/sciencedaily/strange_science/~3/LXohNfi1Op0/150312123319.htm?utm_source=feedburner&utm_medium=email

Many animals, including humans, acquired essential 'foreign' genes from microorganisms co-habiting their environment in ancient times, according to new research. The study challenges conventional views that animal evolution relies solely on genes passed down through ancestral lines, suggesting that, at least in some lineages, the process is still ongoing.