Stingrays have been proved to be able to use water as a tool in cognitive tests by scientists from Austria, Isreal and the US. The report here, states that the captive freshwater rays from South Amercia demonstrated ability to solve problems and used jets of water to dislodge food stuck on overhead leaves.
The study recognises that these and maybe other related carteligenous fish share the same cognitive ability, bringing them in line with birds, mammals and reptiles.
The study recognises that these and maybe other related carteligenous fish share the same cognitive ability, bringing them in line with birds, mammals and reptiles.
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