In England and Wales it is called Year 6 and the pupils are usually 10 to 11 years old. Often it is the seventh year of school; the years being called Reception, Year 1, Year 2, Year 3, Year 4, Year 5 and Year 6.
Quick Answer. According to Animals Australia, the natural lifespan of a dairy cow is approximately 20 years. The average lifespan of a beef cow is 15 to 20 months.
On average, dairy cows live to about 6 and a half years. The life of a dairy cow has many stages from a wobbly legged calf, to a fully grown adult. Once sheâs reached maturity she could become a mother herself (perhaps several times over), but sheâs also a friend to the other animals in her herd and a fantastic milk producer for the farmer.