Residents at Mount Macrina Manor, a long-term care facility in Uniontown, Pa., have many furry companions to keep them company: dogs, cats, bunnies, birds, and a couple of robotic white baby seals. Residents and staff call one of the seals Sarah, but to its manufacturers and researchers, it's known as Paro. Patti Benford, Mount Macrina's administrator, said therapists caring for patients with dementia use Paro to help them work through problems with communication and social interaction.