The great horned owl is the most common owl of the Americas, easily recognizable because of the feather tufts on its head. These “plumicorns ... to prey upon unlucky cats and dogs.

In this challenge, readers must find a hidden cat among a group of owls within nine seconds. Clues suggest looking on the right side. This type of exercise can help prevent cognitive decline.

This one’s a real test of wits: somewhere among these owls, a sneaky cat is hiding in plain sight. It’s not easy to spot, but if you can do it in 5 seconds or less, it’s a sign of ...