Kate Rodriguez-Clark is an animal matchmaking guru. Among her responsibilities as a population ecologist for the Smithsonian, ...

Mission Critical on August 28 at 8 p.m. ET on Nat Geo WILD to follow their development at three breeding centers. I crouch down low in the grass to get a closer look at the animal lurching toward me.

Short snouts and a flat profile -- within a span of 100 years, humans have significantly changed the shape of the skulls of German domestic pigs. This is likely down to new breeding practices ...