The black rhino is a critically endangered species. Poaching is the biggest threat to the animal. In Botswana (southern Africa), poaching has been intensifying for several weeks due to the absence of tourists and the reduction of patrol teams. Thus, the Botswana authorities are in the process of locating the rhinos to move them to a more watched area than that of the Okavango Delta, in the north of the country. Photo credit: Fabio Achilli