As poachers gain increasingly sophisticated tools, including helicopters and night vision technology, anti-poaching units comprised of police, park authorities and private agencies are struggling in their efforts to protect their charges. SANParks (South African National Parks) has requested military assistance and the military has indicated that they are willing to help. They have exceptional air to land equipment that will be essential in this on going battle. Read more here, but be aware that the related links at the end have some VERY graphic pictures on them.
This picture above is of Elly, the black rhino at the San Francisco Zoo and one of her calves. Elly is part of a conservation breeding program and has the world record for having the highest number of calves in captivity.