Primates 'face extinction crisis' :

A global review of the world's primates says 48% of species face extinction, an outlook described as "depressing" by conservationists.
The IUCN Red List of Threatened Species says the main threat is habitat loss, primarily through the burning and clearing of tropical forests.
More than 70% of primates in Asia are now listed as Endangered, it adds.
The findings form part of the most detailed survey of the Earth's mammals, which will be published in October.