If you slept through history class, rest assured that this isn't one of the signs of the apocalypse. Though, it was probably part of an early draft of how to signal the apocalypse.
A boa constrictor was spotted on a London sidewalk eating a pigeon Saturday morning. Thought to be an abandoned pet, according to the BBC, the snake was loose on High Road, Leytonstone. When Dave Fawbert photographed the boa, it was having lunch. Totally normal day.
The RSPCA, a wildlife charity, was called and brought the snake to a wildlife center. A spokesperson told the BBC that "someone had found a dead pigeon and then [gave] it to the snake." The incident went viral after Fawbert shared the unsettling image. He got a good look at the loose snake and told the BBC that the snake was "100% eating the pigeon, it had its jaw open wrapped around it, and the head was half-way in already."