A brain typically makes up 1/40th of our body weight. Depending on the breed, dog brains make up 1/125th of the animal's weight -- but that doesn't mean they're dumb. A border collie named Chaser, for example, has learned more than 1,000 different words over the years. He can even infer new ones with a little help, so take a chance on your own pooch and challenge it to a game of memory.
Some of the best dog memory puzzles come from the shop of a Swedish designer named Nina Ottosson. Thy're are simple enough for a dog to get while challenging your pet to rely mostly on memory, instead of smell, to discover tasty treats. With a little practice on one of these toys, Fido will be playing Simon Says in no time.
€25.00, Nina Ottonsson