elephants

According to historical records, elephants have long been friends of human beings and can provide assistance to human beings. Elephants are very clever and can open up fields and bury their dead companions among fallen leaves and branches. Elephants have a long lifespan and can generally live to around 70 years old. They become sexually mature at the age of 10 to 15 and have a pregnancy period of up to 22 months. Elephants are widely distributed. About 40 million years ago, all continents except Oceania and Antarctica had its footprints. However, there are mainly two types of Asian elephants and African elephants now.