Vultures are crucial to the ecological cycle; they dispose of carcasses and minimise the spread of diseases. They are also an indicator of the overall health of the ecosystem, but they are threatened by power lines and wind farms, among other signs of modern life.
• Tusker research goes social
The World Wide Fund for Nature is auctioning the naming rights to a newly discovered South African iris, and will give the proceeds to its Table Mountain Fund, which supports conservation projects on Table Mountain and in the Western Cape province.
• SA marks Year of Biodiversity