A student researched how selective breeding has been used to develop modern dairy cows from wild cattle ancestors.
| Information | Wild Cattle (Ancestors) | Modern Dairy Cow |
|---|---|---|
| Average adult mass (kg) | 800 to 1000 | 600 to 700 |
| Volume of milk produced per year (litres) | 500 to 700 | 7000 to 9000 |
Describe how selective breeding has been used to produce modern dairy cows that yield very large volumes of milk.
