Denmark has twice as many pigs as there are people.
66
Dogs have been man's pet for over 14,000 years.
224
Bats sleep 18-20 hours per day.
5
Cats recognise the voice of their owner, but never evolved to care.
22
A dairy cow can produce more milk when listening to music.
446
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25