Videos of two captive white -
handed gibbons (Hylobates lar) leaping from one branch of a jungle gym to another reveal that the apes break the record for work per mass performed in a single movement by any other species to date.
In 1969 cases of malignant lymphoma were reported in a single colony of white -
handed gibbons in a US military research facility in Bangkok, Thailand and were at the time attributed to an unknown infectious agent.
Not exact matches
But while Greek Olympians had the help of stone or metal
hand weights known as halteres,
gibbons leap up to 10 meters without assistance.
They lack the long, strong fingers used by chimps and gorillas for knucklewalking, and the elongation of the
hand found in the highly arboreal
gibbons and orang - utans.