Hermit crabs need a lot of calcium to support the health of their exoskeleton, and this is especially true during molting. Ways to provide ample calcium to your crabs include the following: cuttlebone - readily available in pet stores (check the bird section) and can be given whole, or shredded and added to food.
Female elephants are called cows. Male elephants are called bulls. An entire group of elephants are reffered to as a heard. Elephants are very intelligent animals with complex social structures.
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.