Whether by land, by air, or by sea, many wild animals make extraordinary long-distance journeys. Ancestral, and even some modern, humans have likewise undertaken equally impressive odysseys across and between continents. In this press conference journalists will hear how variability in soil nutrients may help drive migrations of more than a million wildebeest and hundreds of thousands of zebras and antelope in the East African Serengeti. Another team will present new results on the use of low-cost sensors to detect the vocalisations of individual African Bush Elephants to monitor their movements in South Africa. We will also hear how a group of researchers is testing forecasts of present-day human migrations in response to climate change, research that could soon increase the effectiveness of much-needed humanitarian aid.