Kipunji

Kipunjis were first discovered in 2003 and reported to the world in 2005. They were the first monkey species to be assigned a new genus since the 1920s. The only two known populations are in the mountain forests of Tanzania and with fewer than 2,000 individuals counted, they are already critically endangered. Little is known about the kipunji yet. They live in groups, mainly up in the tree tops and are, unsurprisingly, shy of humans. Their distinctive and loud 'honk bark' is unlike that of any other monkey and was a factor that helped to distinguish them as a new species.

More...