Domestic pigs average a top speed of about 11 miles per hour.
182
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Cats and dogs can hear ultrasound.
350
The colossal squid has the largest eyes in the world.
4
Moths are unable to fly during an earthquake.
328
The seahorse is the only fish to have a neck.
12