How much do you know about presidential pets? Take our quiz.

As a struggling economy dogs President Obama, his famous four-legged friend, Bo, could be a political risk, a new George Washington University study finds. The authors conclude that presidential pets are welcomed in times of scandal and war but not in bouts of economic instability. Whatever the case, first pets have long attracted publicity and press. From pooches to parakeets, see what facts you can recall about some noteworthy presidential pets.