Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
The elephant brain weighs about 6,000g.
274
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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A dork is a whale's penis.
327
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
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