The duck-rabbit image above is one of the most iconic in philosophy – so iconic that a former undergraduate of mine had it tattooed on his leg. So what’s philosophically significant about this dot and ...

The duck-rabbit illusion, originating from a German magazine in 1892 and later referenced by Wittgenstein, demonstrates how perspective shapes perception. Seeing either animal first reveals cognitive ...

More than 100 years after it was first sketched, an image still depicts either a rabbit or a duck – depending on how quickly and creatively your brain works. Recently making rounds on social media is ...

Is this a rabbit or a duck? The answer you give to this classic optical illusion says a lot about your brain, psychologists claim. It first appeared in a German magazine in 1892 under the title ...

14:23, Mon, Feb 15, 2016 Updated: 15:46, Mon, Feb 15, 2016 The tried and tested old teaser has been used by psychologists to understand more about the viewer - and the internet is loving it.