Test your observation skills with this optical illusion challenge! Spot the hidden owl in a pattern of birch trees.

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Test your eyesight with a challenging optical illusion that requires you to spot the real owl among soft toys in just 7 seconds. Focus on subtle differences in texture and eye color to ...

The owl butterfly may be beautiful, but looks can be deceptive: in reality the species is something of a hooligan. The juice guzzler loves nothing more than a day feeding on fermented fruit and ...