Wendy - The Schwarzenegger dog

Wendy has been called the Schwarzenegger of doggies, but she didn’t have to work out for hours to achieve her look. She was born that way. She is what is called a “bully Whippet.”
        It's the result of having two mutated copies of the myostatin gene. Whippets with one defective copy of the gene have increased muscle mass that can enhance racing performances in the brisk-running breed, which can reach speeds of up to 60 kilometres per hour.
        But whippets with two mutated copies of the gene, like Wendy, become "double-muscled," which looks a lot like it sounds. The muscles on her 30-kilogram body bulge, dwarfing her small head and dainty, whippet-thin legs.

Photo credits : Source1, Source2, Source3