Domestic Canine Species

early art dog

Dogs & Humans

Parallel evolution

A team of scientist compared the genes in dogs and humans. Both species under- went similar changes in the genes responsible for digestion and metabolism. Those changes could be due to a dramatic shift in the proportion of animal versus plant-based foods that occurred in both at around the same time. The also found co-evolution in several brain processes, especially those effecting serotonin. It seems that human and canine anatomy and physiology evolved parallel to each other.