Denmark has twice as many pigs as there are people.
66
The cat brain weighs about 30g.
167
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Bats sleep 18-20 hours per day.
5
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A scorpion can hold its breath for up to 6 days.
19
A 42-foot sperm whale has about 7 tons of oil in it.
209