Two million years ago, humans became rapidly taller, changing the relationship between hominins and their environment.
Physically stronger and better equipped technologically, human populations acquired a new way of life which was mainly
based on the predation of large herbivorous mammals.
Game hunting implies a greater mobility as the seasonal migrations of herds are followed. A true nomadic lifestyle started
to take place, leading to a slow dispersion of humans to all continents and giving them access to very varied environments,
which were sometimes extreme.
Different regions of the world give different constraints to hunters. For the Neandertals, who were occupying Eurasia,
game resources were plentiful whilst the environmental conditions were often harsh.