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
A giraffe's kick is so powerful that it can decapitate a lion.
216
Cats and dogs can hear ultrasound.
350
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
There's a lizard known as the 'Jesus Lizard' that can run across water.
11