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Dolphins can perform complex feats of maths that defy human computer systems. The finding has forced scientists to reevaluate how intelligent the animals are. When hunting, dolphins blow 'bubble nets' - but are still able to use sonar - 'counting clicks' through the mass of bubbles. The ability seems to prove that the animals can do complex 'nonlinear' maths calculations.
Human sonar systems would be baffled by the bubbles - but dolphins appear to have a mathematical ability to 'cancel them out. 'I immediately got hooked, because I knew that no man-made sonar would be able to operate in such bubble water,' says Tim Leighton, professor of underwater acoustics at the University of Southampton. Leightons team have been attempting to unravel how dolphins can hunt - while effectively blinding themselves.
'These dolphins were either 'blinding' their most spectacular sensory apparatus when hunting - which would be odd, though they still have sight to reply on - or they have a sonar that can do what human sonar cannot …Perhaps they have something amazing.' ...
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