Elephants live in family groups led by the oldest female, called the matriarch. She remembers where the best water and food are - even in places she hasn't visited for many years. The youngest members of the family copy her, and that knowledge passes down through generations.
Their trunks are amazing tools. A trunk has around 40,000 muscles in it - more than the whole human body. With its trunk, an elephant can pick up a single leaf, smell the wind, suck up 10 litres of water at once, or trumpet a loud call across the savannah.
Elephant ears are huge - shaped a bit like the map of Africa - and they aren't just for hearing. The big surface of the ear lets blood cool down as it flows through, helping the elephant stay cool in the African heat. They flap their ears like fans on a hot day.
Elephants are very gentle with their babies. The whole family looks after a calf - aunts and older sisters help the mother. If a baby is tired, an adult will use her trunk to gently nudge it along. If the river is wide, the older elephants form a line to keep the baby in the middle, safe from the current.