Watch Bad Biology (2008) HD Full Movie Free on solarmovie.do. Watch Bad Biology (2008) online free. Driven by biological excess, a man and a woman search for sexual fulfillment, unaware of each other'...Driven by biological excess, a man and a woman search for sexual fulfillment, unaware of each other's existence. Unfortunately, they eventually meet, and the bonding of these two very unusual human beings ends in a god awful love story.