Oscar - The Furry Grim Reaper

Oscar the cat seems to have an uncanny knack for predicting when nursing home patients are going to die, by curling up next to them during their final hours. His accuracy, observed in 25 cases, has led the staff to call family members once he has chosen someone. It usually means they have less than four hours to live.

"He doesn't make too many mistakes. He seems to understand when patients are about to die," said Dr. David Dosa in an interview. He describes the phenomenon in a poignant essay in Thursday's issue of the New England Journal of Medicine.

The 2-year-old feline was adopted as a kitten and grew up in a third-floor dementia unit at the Steere House Nursing and Rehabilitation Center. The facility treats people with Alzheimer's, Parkinson's disease and other illnesses.

After about six months, the staff noticed Oscar would make his own rounds, just like the doctors and nurses. He'd sniff and observe patients, then sit beside people who would wind up dying in a few hours.

Dosa said Oscar seems to take his work seriously and is generally aloof. "This is not a cat that's friendly to people," he said.

Oscar is better at predicting death than the people who work there, said Dr. Joan Teno of Brown University, who treats patients at the nursing home and is an expert on care for the terminally ill

She was convinced of Oscar's talent when he made his 13th correct call. While observing one patient, Teno said she noticed the woman wasn't eating, was breathing with difficulty and that her legs had a bluish tinge, signs that often mean death is near.

Oscar wouldn't stay inside the room though, so Teno thought his streak was broken. Instead, it turned out the doctor's prediction was roughly 10 hours too early. Sure enough, during the patient's final two hours, nurses told Teno that Oscar joined the woman at her bedside.

No one's certain if Oscar's behavior is scientifically significant or points to a cause. Teno wonders if the cat notices telltale scents or reads something into the behavior of the nurses who raised him.