Our "Natural Selection" sticker is meant to highlight the humor of idiot tourists who ignore signs and take selfies with wild animals! Our stickers are printed in house and feature an adhesive that won't leave a mess of surfaces when removed but stick like crazy and are waterproof and washable. They work great indoors and out, on you Water Bottles, Rear Windshield and even your Laptop. As always our products are made with pride here in the USA!