Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
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
A scorpion can hold its breath for up to 6 days.
19
Cats and dogs can hear ultrasound.
350
Tigers can see 6 times better at night than humans.
305
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11