Providing the answer to a riddle that has been puzzling the staff of a South African nature reserve for decades.
Years of research led staff to a disturbing conclusion; elephants may be killing rhinos.
For years nature reserve staff have been trying to find out who's killing their rhinos.
African elephants are even larger than there Asian relatives.
Their trunks, tusks and immense size sets elephants in a class of their own!
Sir David Attenborough talks about his encounters with elephants.
You can't think of elephants without immediately picturing that long trunk.
Why do elephants favour one tusk? Do they really never forget?