If you mean cultivated to be tasty and edible, then yes it took a long, long time to get there. But the GM stuff available now is tasteless and unappetizing. If your tomato leaves you thirsty after the first bite, the it's not a juicy tomato. If your strawberries are red on the outside and white and tasteless on the inside, then you've run into the magnificence of GM foods.
Unfortunately, GM foods weren't designed to taste better, but to last longer. If you have the opportunity to buy at a farmers market than you won't have so much GM foods. But at Walmart, that tomato has been carried halfway around the planet, kept in warehouses, by the time it gets to the store it's barely edible, but as long as it looks fresh for most shoppers that's all that matters.
As for pets, they've been inbred for so long that most purebreeds are thoroughly retarded.