Condoms were originally made of animal intestines or linen.
347
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Cats recognise the voice of their owner, but never evolved to care.
22
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
All pandas are ‘owned’ by China. They rent them out to zoos for $1mil/year each with minimum of 10 years.
16
The elephant brain weighs about 6,000g.
274
A cow produces around 200,000 glasses of milk in her lifetime.
373