The neighbors of the University of Arizona are facing strange problem that includes small white rats that have been swimming through sewer pipes and into their toilets.

According to Laura Hagen Fairbanks, spokeswoman for the county's Wastewater Management Department, they are the kind that researchers use in labs.

After 37 rats and six cats were seized from the filthy cabin of his sailboat, a man now faces charges of cruelty to animals and confining animals in too small of a space.

In 2006 authorities discovered Roger Dier of Petaluma to be living with 1,300 rats and evicted him from his one-bedroom home. Shortly thereafter Dier bought a 29-foot sailboat.

A 2-year-old rat terrier dog named Daisy, who disappeared from her home in Colorado, was reportedly found seven months after in Knoxville, some 1,300 miles away.

The dog was spotted by Tracie Crass as it wandered down her sidewalk on Christmas night. Crass then brought the pooch on her porch and waited for its owner to come looking for it.

Police have arrested a woman after finding a frying pan coated with remnants of ground beef and rat poison in her trash. The 55-year-old woman allegedly cooked up poisonous was meatballs and fed it to a neighbor's dog because she didn't like its barking.

Police reportedly charged Charmaine Twarozek on Friday for poisoning a dog and cruelty to animals, misdemeanors, police said.

A 43-year-old woman was arrested Friday for attempting to poison her sister and her sister's boyfriend with sandwiches laced with poison, police say.

The woman's live-in sister called police and said she had found rat poison in her sandwich and in her boyfriend's sandwich. She said it wasn't the first time she found poison pellets in a sandwich, either.