How Do Elephants Mate?

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Elephants are social creatures and live in complex hierarchical communities. Each herd has one female that is the matriarch. She dictates where the herd goes and helps to teach the younger elephants proper behavior. Female elephants, or cows, live in multigenerational family groups with other females. Males stay with the family until they reach 12 to 15 years of age, when they leave the herd and live alone or join up with other bulls. Male and female elephants live separately with bulls only visiting when some of the females are in their mating season, known as estrus.

Elephants mature later than many other animals. Females reach sexual maturity at 10 to 12 years of age, males at around 25. A male doesn't generally start breeding until age 30, when it has reached a sufficient weight and size to compete with other breeding males. At that point, it will start to seek out females in estrus.

Elephant Breeding Seasons

Bulls enter a state called musth once a year, and older bulls tend to stay in musth longer than younger bulls, up to six months. During this period, they have increased levels of testosterone. They secrete a fluid from their temporal gland between the eye and ear and will actively seek a mate. Dominant males, which are older, tend to come into musth when a large number of females are in estrus, and the males exhibit physical behaviors, such as flapping their ears and rubbing their head on trees and bushes to disperse the musth scent. They also have a particular rumble, a low frequency vocal call, used to attract females who are also ready to mate. Females sometimes respond with their own call, indicating interest. While a cow can mate with any male, those in musth may be more attractive to females in estrus.

When a male approaches, a female in estrus may at first show wariness, but if she is interested, she will then leave the family group, walking with her head up and turned sideways to watch the male as he follows behind. The male may chase the female if she retreats and will chase off any other males. Elephants may stroke each other with their trunks before the male mounts the female from behind, standing almost vertically as they mate. Elephant sex lasts for up to two minutes and afterward, he will stay near the female and guard her from other males. Females may mate with more than one bull in each estrus cycle, which lasts up to 18 weeks. While elephants do not mate for life, a female may repeatedly choose to mate with the same bull, and bulls are sometimes seen being protective of females.

Longest Pregnancy on Earth

At 22 months, elephants have the distinction of having the longest gestation period of all animals and give birth to live young. Pregnancy almost always results in a single birth; twins are rare. When it is time to give birth, female elephants move away from the herd and then return to introduce the new member, who is inspected by each other member of the family. At birth, babies weigh 90 to 120 kg (198 to 265 pounds) and are typically around 3 feet tall. Baby elephants tend to be hairy, with a long tail and a short trunk that grows as its diet changes. Offspring are weaned at two years, though some may continue to nurse up to age six and a half. Because of this long gestation and nursing period, estrus cycles are between four and six years apart. On average, a female elephant will give birth to seven offspring in her lifetime.

The offspring are cared for by the mother and other female family members until age eight, and females occasionally nurse young other than their own. When threatened by a predator, adult elephants will form a protective ring around the young elephants. Females stay in the family group while males eventually are driven away.

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