Tumaini Matinda from Arusha, Tanzania07/15/2013July 15, 2013Tumaini Matinda is 33 years old and works as a travel guide, organizing safaris for tourists who visit national parks.https://p.dw.com/p/174TLImage: DWAdvertisement He is concerned that some species could become extinct because humans covet their horns, tusks or teeth.
