Scientists on a research expedition to the Amazon rainforest have discovered a species of monkey that has never been seen before.

The trip, which was backed by conservation group the WWF, took place in the largely unexplored Mato Grosse region of Brazil and the new primate was found in the north-western area.

It is a member of the titi family and features distinctive red fur.

The monkey's discoverer Julio Dalpone said: "This primate has features on its head and tail that have never been observed before in other titi monkey species found in the same area."

A specimen of the as-yet un-named creature has been brought to the Emilio Goeldi Museum in Brazil where scientists will study the animal, though it will be several months before it is fully described.

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