Have creepers stopped scaring you? What if they start creeping up on you completely unnoticed? With this resource pack, creepers will be able to masquerade as cows, sheep, pigs and chickens, completely copying their models. They’ll behave just like any other animal, except they won’t make a sound before they explode.

Screenshots of the Polymorphic_Creepers texture

How to install Minecraft texture

Install Optifine HD (Optional but recommended)
Copy the resource pack to your .minecraft\resourcepacks folder.
Choose your desired resource pack in the game settings