From Victoria Falls is possible to visit the nearby Botswana. Specifically Chobe National Park. Hippos for example are often seen along the marshy banks of the Chobe River. As we cruised near the riverfront, we saw groups of over twenty hippos huddled together, one close to another as a form of defense against predators. With their bulging bellies and short, fat legs, these animals barely looked like they were capable of harming anyone – but as Bernard said, “Hippos kill the most number of humans each year, they’re one of the most dangerous animals in Africa.” The Savuti Marsh area, 10,878 km² large, constitutes the western stretch of the park (50 km north of Mababe Gate). The Savuti Marsh is the relic of a large inland lake whose water supply was cut a long time ago by tectonic movements. Nowadays the marsh is fed by the erratic Savuti Channel, which dries up for long periods then curiously flows again, a consequence of tectonic activity in the area. It is currently flowing again and in January 2010 reached Savuti Marsh for the first time since 1982. As a result of this variable flow, there are hundred of dead trees along the channel's bank. The region is also covered with extensive savannahs and rolling grasslands, which makes wildlife particularly dynamic in this section of the park. At dry seasons, tourists going on safari often view warthogs, kudus, impalas, zebras, wildebeests and above all elephants bullying each other. At rain seasons, the rich birdlife of the park (450 species in the whole park) is well represented. Packs of lions, hyenas, zebras or more rarely cheetahs are visible as well. This region is indeed reputed for its annual migration of zebras and predators.