A trio of ethologists at Eötvös Loránd University, in Hungary, has found, via experimentation, that some dogs are able to remember toy names for up to two years. In their study, published in the journal Biology Letters, Shany Dror, Ádám Miklósi and Claudia Fugazza taught toy names to several dogs and then hid the toys away for two years to learn more about the dogs' long-term memory.
