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RT @CulumBrown: Guppies perceive a reversed Delboeuf illusion: https://t.co/dPVUsImOBy
Guppies perceive a reversed Delboeuf illusion: https://t.co/dPVUsImOBy
RT @SpringerANCO: Guppies (Poecilia reticulata) are susceptible to the Delboeuf illusion, in which two same-sized objects are perceived as…