This optical illusion was shared on a Reddit forum page and left thousands of people completely stumped.

Only those with 20/20 vision are thought to be able to spot the lurking beast.

It was shared on the r/FindTheSniper page with the caption: “Find the brown bear.”

The brainteaser photo racked up 12,000 upvotes and more than 1,400 comments as many struggled to solve the question.

The illusion image shows an ordinary forest scene with trees and hills. Can you spot it?

There is a fallen tree on…