442K views · 662 reactions | Unlike most frog species, glass frogs are attentive parents—at least the males are. | National Geographic | Facebook

At first glance, both frogs look perfectly identical, sitting calmly on a branch surrounded by leaves. Same colors, same pose, same smile. But don’t be fooled. One tiny change hides somewhere in the picture, and it’s harder to find than it looks. This is where your focus gets tested. Every spot-the-difference puzzle builds patience and precision. You have to scan every inch of the image — the frog’s legs, eyes, leaves, and even the branch lines. The difference is so small that only sharp eyes wi