African elephants reach a maximum weight of 14,000 pounds, standing up to 13 feet high at the shoulder, while Asian elephants weigh up to 11,000 pounds and reach up to 10 feet in height. The two species are the heaviest land animals on Earth.
With a gestation period of 22 months, elephants have the longest pregnancy of any mammal, with the calf weighing 200 pounds and standing 3 feet tall at birth. The animals sleep very little, spending much of their time foraging for the large quantities of bark, fruit grasses and roots needed to sustain their massive size. An adult elephant may consume up to 300 pounds of food in a single day.