How Much Do Animals Remember?

Another teacher told me recently of how happy her pet fish are when she comes to feed them, and the custodian at our school speaks warmly of our class pet, Peanut the leopard gecko, being excited to see her in the evening. Do animals remember us so richly, or are we anthropomorphizing-- a fancy word for imagining that our furry friends have human traits? Well, for one thing, the popular myth that goldfish have a three-second memory has been busted-- by a kid doing a science fair project, no less!-- but here's an even more inspiring story that you may have heard about: