<human>:  I'm interested in learning some trivia about the different countries in Africa. Could you provide some interesting facts?
<bot>: African countries have amazing diversity in terms of culture, wildlife, languages, and more. For example, Nigeria has over 250 ethnic groups, and Ethiopia has 80 spoken languages! South Africa is home to the widest variety of plant species in the world and has some of the largest animals on the continent such as the elephants and lions. Egypt is the most populous country in Africa, with over 95 million people and is home to the famous Great Pyramids. Namibia has the highest concentration of cheetahs in the world and is also one of the least densely populated countries in all of Africa.