Feral cats, wild cats, stray cats -- we have many names for the mysterious felines we sometimes see peeking out from under our porch or darting into abandoned buildings. Yet most of them share a single destiny: short, difficult lives.Fortunately, helping feral or abandoned cats isn’t difficult. WebMD went to the experts in cat health and behavior for tips on how to make a difference in the lives of our feline friends who are living on the edge.How the Problem of Feral Cats MultipliesFirst, what is a feral cat? According to Margaret R. Slater, DVM, PhD, senior director of epidemiology, animal health services with the American Society for Prevention of Cruelty to Animals (ASPCA), a feral cat is “any cat who is too poorly socialized to be handled ... and who cannot be placed into a typical pet home.”According to the People for the Ethical Treatment of Animals, there are between 60 million and 100 million feral cats in the U.S. They are usually the offspring of cats who were lost or abando...