What a refreshing idea. This year alone 558 rhinos have been killed in South Africa[1]. Drones sound like the help rangers need to cover wide spaces. [1]http:/

What a refreshing idea. This year alone 558 rhinos have been killed in South Africa[1]. Drones sound like the help rangers need to cover wide spaces. [1]http://www.news24.com/Green/News/558-rhino-killed-so-far-this-year-20140710 http://www.news24.com/Green/News/558-rhino-killed-so-far-thi...