these cows are bizarre, how do they walk?

Let me help you with your poor grammar.

The Belgian Blue cattle are known as "monster cows" because of their heavy muscle mass. They have, a natural mutation of the gene that codes myostatin, a protein responsible for the limitation of muscle growth. Almost every living being has myostatin, except for these cows.
Check out that "monster cow" in the image above and click on it to see its relatives. lol - not necessary

the fucking blog is titled "SaY wHat ?!"

I don't think he gives a fuck about grammar you fucking Nazi