Members of a generation are linked through shared life experiences which create a bond tying members together in what has been termed cohorts. Thus generational cohorts are groups of individuals who were born during the same time period and who experienced similar events during their formative years.
Baby elephants a.k.a calves are pretty large when they are born. They weigh around 250 pounds when they are born and can stand at around 2.5 feet tall.
An Asian elephant is pregnant for 645 days while an African elephant is pregnant for 640 days. But it can be 21-23 months long. An elephant has the longest gestation period of any land animal, at 22 weeks. An elephant calf can weigh up to 260 pounds! An adult African elephant can weigh more than 15,000 pounds. http://answers.ask.com/Science/Other/how_long_are_elephants_pregnant_for. The gestation period of an average elephant is 22 months, or 630-660 days. The elephant has the longest gestation period of any mammal.