Lizards found unable to distinguish between groups with different numbers of individual components

(Phys.org)—A team of researchers with members from the University of Padova and the University of Ferrara, both in Italy, has found that unlike most other animals studied to date, ruin lizards (Podarcis sicula) are unable to understand numerical differences in groups of objects. In their paper published in the journal Biology Letters, the team describes how they conducted experiments with the lizards and what they found.

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