Real snakes. Real hats.
The r/SnakesWithHats subreddit – 40,000 contributors can’t be wrong.
Found in Geesala, Achill, Co Mayo yesterday by Henry Coyle.
A cat responds to the ‘rotating snake’ optical illusion in a way that appears to suggest they can, indeed, perceive ‘movement’ in still images.
Cat science. The best kind of science.