An image presents an optical illusion. Initially, viewers see a rabbit. By shifting focus, the image transforms into a horse.

The duck-rabbit illusion, originating from a German magazine in 1892 and later referenced by Wittgenstein, demonstrates how ...

The Trump-Goldfinger illusion is a bit like the famous duck-rabbit illusion, but there is a huge difference. Seeing the duck-rabbit does not influence how you see everyday ducks (or rabbits) in ...