The Basenji dog is the only dog that is not able to bark.
4
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Cows can sleep standing up, but they can only dream lying down.
745
The cat brain weighs about 30g.
167
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7