A viral image posted by Reddit user @mellohorse appears to show a simple forest floor: worn boots, pine needles, a green sprout, and a plastic crate. But look closer—there’s a hidden snake, perfectly camouflaged among the twigs and leaves.

The challenge has captivated social media users, many of whom admit they stared at the photo for ages before spotting the reptile. It’s a reminder of how optical illusions trick our brains by blurring the line between perception and reality.