Condoms were originally made of animal intestines or linen.
347
Cats recognise the voice of their owner, but never evolved to care.
22
Lurch, a Watusi bull, had the largest horns in the world.
32
The octopus does not have a blind spot.
273
Dogs have been man's pet for over 14,000 years.
224
The Basenji dog is the only dog that is not able to bark.
4