Elephants are social animals. In nature, they live happily in family groups. However, people sometimes use elephants for work or put them in zoos. What can people do to make these elephants healthy and happy? How can they stay that way?...

Two scientists are travelling in Ethiopia to study a very old volcano. Volcanoes can be dangerous, because they have hot, melted rock inside. But they also offer important information. Will the scientists make it safely to the volcano? What will they......