Among the other 11, south Africa has a critical role to play as it is more developed than the others, and also somewhat of a gateway to southern Africa.
By improving their hunting techniques, early humans seem to have played a major role in finishing off the woolly mammoths and nine other mammal species that weighed over a tonne.
Teachers usually behave badly, they are late, chew gum, talk to deskmates and have to be reprimanded and sent to the head teacher who is also a senior pupil.
Some people believe that women should play an equal role with men in a country police force or military force, while others think women are not suitable for these kinds of jobs.