Frieda, a two-year old female Chihuahua, and Morgana, a nine-month old female tabby mix, huddled together in a purple backpack last week after they were surrendered to the Marin Humane Society (MHS). The unlikely pair are victims of the shaky economic times; Frieda and Morgana's owner recently lost her home as a result of the financial crisis. "Frieda and Morgana are best friends, so we want to find them a home where they can be together," says MHS spokesperson Carrie Harrington. "Bonded pairs of the same species are not unusual. But adopting an already bonded cat-dog pair is rare —...