Archerfish spit water at their prey Shutterstock / Roberto Dani
Can fish count?ÌýAn experiment involving archerfish spitting at computer monitors has provided the best evidence yet that they really can distinguish between different numbers.
Various studies over the past decade or so have suggested that fish have an innate sense of numbers like many birds and mammals do and are surprisingly good at mathematics. But these typically involved tests such as individual fish choosing to join the largest of two shoals.
Critics say these experiments , rather than of…
