In the midst of so much mass extinction, it is encouraging to know that people are working to save some of our most threatened species. One species greatly endangered is the rhino.
Rhinos are killed largely for their horns.
Some sub-species of rhinos are gone, but the San Diego Zoo Safari Park, which I visited earlier this month, has given us hope. Take a look at this sweet article about saving rhinos.
Remember that tonight is Discovery's new series Serengeti!
Michele Mattingly is the author of Before the Empress: Messages from Mount Kilimanjaro.