Built into dogs' DNA is the ability to vary greatly in appearance. They can be as small as a Chihuahua, as large as a St. Bernard. It's micro-evolution, and it's the opposite of macro-evolution. It shows clear design parameters pre-built into the DNA, pre-programmed to be able to change within boundaries. A dog's DNA will never let it become a cat. But it suggests a creator who likes variety and diversity.
Humans also have variety programmed into our DNA. That's where skin-color, facial shape, preferences, and personalities come from. And in case we stagnate, every father and mother brings fresh variables to shake it up. But I believe not only our bodies and personalities, but even our cultures are within His design. I believe He loves the variety of cultures. In specific, I want to mention food, probably because I'm hungry and my wife is making me a birthday dinner of Mexican fajitas from scratch. (The refried beans take about two to three days to make.)
There's a lot to say for Chinese food, for Italian pastas and American hamburgers. But personally I'm most grateful for Mexican food, including that cultural mutt called Tex-Mex. The world would be emptier without it. And I like to suspect that God himself is delighted in Mexican food, just as he laughs for joy at tiny Chihuahuas and giant St. Bernards. Splendid plan, God! Time to eat.