Great migrations

AKA Animal locomotion What is it? Mass movement of animals over a large distance on a seasonal basis. Where? Most famous, of course, is Kenya and Tanzania s Great Migration of around two million wildebeest, which circle the Serengeti and Masai Mara looking for good grazing. The Great Migration is most dramatically witnessed June September, when the huge herds cross croc infested rivers. But there are also vast numbers of wildebeest on the move in Zambia s Liuwa Plains (June October) and Botswana s Makgadikgadi Pans, where many of the 30,000 wandering ungulates are zebra. Caribou make the longest migration of any land mammal, with some covering over 4,000km each year. The 130,000 strong Porcupine Herd of Alaska s Arctic National Wildlife Refuge can be seen on wilderness trips June August.