This is mostly a video presentation but the description below explains its content.
Full Article/Video at http://www.theuforeportcenter.com/transgenic-beings/
By pctheufo
Some UFO researchers such as Budd Hopkins and others have concluded that aliens are colonizing planet earth by abducting humans and altering their genetic code using sophisticated medical procedures thus creating a hybrid or transgenic being. This silent invasion hypothesis may soon be able to be detected by analysis of rapidly advancing genetic profiling technologies and whole genome DNA sequencing.
Full Article/Video at http://www.theuforeportcenter.com/transgenic-beings/
If you want more of a big picture – see alliesofhumanity dot org.