Incidentally, a ground-dwelling gibbon might exist in Sumatra, where it's known as orang-pendek: it's one of the most probable animals in cryptozoology, but that's not our story today.
Our story is about a brand-new species.
Zoo gibbon (unknown species)
The discoverers of a new gibbon from China, it appears, are fans of the Star Wars films. It was known that gibbons lived in the forests of Yunnan province, but no one had taken a close enough look until now to determine they were a separate species. The Skywalker hoolock gibbon has a scientific name which, in Chinese characters, translates as "heavenly movement." Skywalkers, alas, are few and far between, like Jedi: there may be only 200 of the apes.
It's another reminder that we don't know all the animals on Earth - and another reminder that so many animals are in precarious situations.