Leonardo would often buy caged animals so he could set them free

Leonardo Da Vinci was a vegetarian

Leonardo Da Vinci could draw with one hand and write with the other hand at the same time

Only fifteen of Leonardo's paintings still exist

Leonardo was arrested on the charge of sodomy (a crime punishable by death) after allegations by several young men. The charges were later dropped

Leonardo wrote in "mirror script", which is the practice of reversing one's handwriting so it can only be read in a mirror