http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Game rangers in South Africa's wildlife parks have discovered that the white rhino, a breed they had protected for years, was being attacked and killed by orphaned young male elephants. To combat the problem, park rangers brought in older bull elephants to act as role models and keep the younger males under control.
Reporter: Bob Simon ; presenter: Dan Rather.