Cichlids and stingrays can add and subtract ‘one’ in the number space from one to five DOI: 10.1038/s41598-022-07552-2 Corresponding Authors: Vera Schluessel University of Bonn, Bonn, Germany ...

Vera Schluessel at the University of Bonn in Germany and her colleagues designed tests to work out whether ocellate river stingrays (Potamotrygon motoro) and zebra mbuna (Pseudotropheus zebra) can ...

Maths prodigies: stingrays (left) and cichlids can add and subtract small numbers. (Courtesy: Vera Schlüssel/University of Bonn) It has long been known that fish can count, at least to four, but new ...

Study finds some fish can add and subtract Cheryl Santa MariaDigital Journalist Published on Apr. 7, 2022, 9:52 AM ...