Dogs sometimes fake being sick to get attention.
26
Cats and dogs can hear ultrasound.
350
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Dogs can make about 100 different facial expressions.
18
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16