“I promise there’s a deer in this picture”—but can you spot it? Zoom in on this one to see if you’re up for this challenge.

Is there a bird stranger than the ethereal potoo? We think not. Potoos’ remarkable camouflage is on full display here.

A photo of a fence amid a winter-bare landscape is more than it seems. In fact, there are three deer hidden in the image—can you find them?

At first glance, it’s just a tree. But look closer and you’ll find there’s a very well-camouflaged snake on the tree. Can you find it?

Can you figure out how many turkeys are in this photo? Not every everyone agrees. Let us know how many you find.

This cougar was hiding in a place that made a lot of people uncomfortable. Can you find the mountain lion and guess where it is?

An idyllic scene from Spain’s Cabárceno Natural Park is more than it seems. Can you find the two bears hidden in this photo?

Can you spot the well-camouflaged snow leopard in this video? It’s nearly impossible to see until you know where it is.

There’s a moose hidden in this stunning photo of Grinnell Lake at Montana’s Glacier National Park—can you spot it?

Can you find the bear hiding along the Appalachian Trail? Thankfully, the hikers were able to spot the animal in real life.