Alfred Russel Wallace, a British Naturalist, explorer and many other traits, was the joint but unsung contributor to the theory of evolution. The Tangkoko Rainforest in Sulawesi, Indonesia, including it's Black Macaques was highly influential to his theory of what became known as 'The Wallace Line', which divided species between Australasia and the rest of Asia.

This is a video filmed by Simon Slater for an upcoming blog article about his visit to and learning about Tangkoko National Park.

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