They have existed on earth for 60 million years, but now illegal wildlife trade means numbers are rapidly declining.
Rangers are on duty day and night as the lockdown may lead to a surge in poaching.
The slaughter of a white female and her calf leaves just one lone male alive in the country.
52-year-old's career in danger following court ruling on 20-year-old case, while four other actors are acquitted of killing a Blackbuck antelope.
Conservation groups have been left outraged at the move, which they say will increase poaching
Body parts of albinos are highly sought in some African countries, where some mistakenly believe they bring wealth and good luck
Veterans from the wars in Iraq, Afghanistan and elsewhere are teaching military techniques to South African rangers.
Kenyan policy makers and experts are rooting for the use of space technology to enhance wildlife and ecosystems management in the country.