Dogs' similarities boost human cancer research

"A person can learn a lot from a dog, even a loopy one like ours. Marley taught me about living each day with unbridled exuberance and joy, about seizing the moment and following your heart... Mostly, he taught me about friendship and selflessness and, above all else, unwavering loyalty." -- John Grogan, "Marley and Me: Life and Love With the World's Worst Dog."