Have you ever wondered about the secret to a long life in families whom all seem to live to a ripe old age? Is it their lifestyle, their circumstances or their genetics? In humans, longevity is an evolving science. New terminologies are appearing as researchers study nonagenarians, centenarians, semi-super and super-centenarians, trying to unravel the secret to their long life.
Longevity varies between families in other species too, and is certainly not a new concept to dairy farmers. Highly profitable, fertile, healthy and long-lived cows have been the dairy herd ideal for generations.