This is actually what an adult cow looks like, we just never get to see it in real life because we kill them for meat before they achieve their true glory. All of humanity used to be pescatarian, but a cult of human skaters convinced us to start eating cows so that they could win at the X Games
That appears to be a human wearing a cow suit (aka leather). You don't often see people wearing the entire suit, head, hooves and all, that's some serious dedication! 🐄