A hidden rabbit in a forest fence photo puzzled Reddit users as they struggled to spot the camouflaged creature in the ...

Explore the fascinating world of optical illusions in this concise 14-minute video. From classic illusions like the Müller-Lyer and Ebbinghaus to modern phenomena such as the Spinning Dancer and ...

Find out how tessellation is when shapes fit together in a pattern with no gaps or overlaps. Shapes with 4 sides Explore four-sided shapes looking at straight lines, curved lines and 2D shapes ...

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Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.