Who Says Mammals Can't Fly (Dog Agility)
USDAA dog agility trials at Saratoga Springs, NY.
These guys run the course at about 20ft per second (about a 6.5 second 40). Slightly slower then a professional football player running a 40 but pro football players don't have hurdles, tunnels, ramps, hoops and other obstacles to jump over, run through or go between.
Of course, bats are mammals and can fly but...this is so much more impressive than a flying mouse.