This book accompanied a nature documentary series that I did not see, but stands alone on its own merit. It covers six different natural events that in some way involve migration, although not all of them follow the migration. Sometimes, the chapter focuses on a particular area, showing what the area is like in different seasons. Three of the chapters focus on Africa while the other three focus on North America.
The Okavango delta in Botswana is a very bizarre place, even by the standards of the natural world. It is not unusual for a river flowing through a country with a hot climate to evaporate before it gets anywhere near the sea, but in the case of the Okavango, it produces some extraordinary seasonal changes.
Another of the African chapters focuses on the Serengeti, initially describing the movements of the wildebeest herds. However, the main focus here is on some lions. The feed on wildebeests when they are available, but do not follow the wildebeest on their migrations. During the periods when the wildebeests are away, they sometimes find survival hard. The production team had a bit more variety than they expected, with a volcanic eruption occurring while they were filming.
This book is fascinating, with plenty of great pictures as well as much to read about. Personally, I think the book would have been even better with a wider spread around the world, with at least one chapter involving Europe. However, I still love this book for what it is.