There are an estimated 70 million feral and stray cats in the U.S. — and tens of thousands of them secretly roam the streets of New York City. In Los Angeles, many homeless felines are finding gigs as rodent hunters; here in NYC, over 4,000 cats were euthanized last year. A much more humane way to deal with the overpopulation crisis? Trap-Neuter-Return, a process that involves sterilizing and medically treating animals before returning them to the location where they were trapped. In July, the New York senate approved new legislation that would fund these more compassionate population-control efforts. Learn more about life as a New York City stray — and meet one of the cutest kittens we've ever seen — in the New Yorker's fascinating video, above.