The beautiful, official site for the Serengeti National Park provides extensive information about the Serengeti ecosystem, physical features, wildlife, and taking a safari through the region. As an added bonus, learn some Swahili.

While the Earth's oceans are known as five separate entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosphere, and contains some of Earth's grandest geological...