Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
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
Cats and dogs can hear ultrasound.
350
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132