- US Secret Service sniffer dogs are put up in five-star hotels during overseas presidential visits.

 - Cerberus was the tri-headed dog that guarded the underworld in Greek mythology

 - Certain frogs can be frozen solid then thawed and continue living

 - When an armadillo is frightened, it jumps straight up into the air. Which means most armadillos killed on the road were actually killed by jumping into the front of the car, not by being run over by the tires.

 - Pet parrots can eat virtually any 'people food' except for avocado and chocolate, both of which are highly toxic and can be fatal to them.