Have you ever seen a happier hippo? Life just couldn’t get any better at that moment for him…or her. This one was in a large herd, maybe 40 or 50, in the Ngorongoro Crater in Tanzania. The Ngorongoro Crater is the largest unbroken, inactive and unfilled caldera in the world, at12 miles across and 2,000 feet deep. The crater floor covers 100 square miles. Over 30,000 animals, including the rare black rhino, lions, cheetah, etc., call this unique place their home. Over 40,000 Maasais also reside in the Ngorongoro Conservation Area (a UNESCO World Heritage Site), which shares a boundary with the Serengeti National Park.