The white-handed gibbon, also called the lar gibbon, is one of the most spectacular acrobats in the animal kingdom. Its extra-long arms let it fling itself from tree to tree across gaps of up to 15 metres in one swing, reaching speeds of 55 km/h as it swings arm over arm. It stays with one partner and is very noisy: every morning, each couple sings a duet to mark its territory. It is threatened by heavy deforestation in Thailand, Malaysia and Indonesia, and by the pet trade. It benefits in particular from the Gibbon Rehabilitation Project, which since 1992 has taken in confiscated gibbons and released some of them into the forest of Phuket, in Thailand.