Domestic dogs are becoming very important in medical research, especially in genetics. They are helping us learn more about cancer and bone diseases. In the researcher's recent study, they examined the genes of over 4,200 dogs, using a large number of genetic markers.

The gut microbiome is a part of our body that responds to the food we eat. The types of food we consume, such as fiber, starch, and protein, can greatly affect the composition of the microbiome.