Cats and dogs can hear ultrasound.
350
The cat brain weighs about 30g.
167
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
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
The reindeer is the only mammal that can see UV light.
17