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
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
The seahorse is the only fish to have a neck.
12