While other primates (such as baboons and red colobus, red tail, and blue monkeys) have managed to thrive in Gombe, chimpanzees have not. Their larger body size puts them at a disadvantage in a restricted habitat, because they must consume more calories (and thus more food) to grow and maintain their weight.
Advocacy is often seen as working “within the system” where as activism is seen as working “outside the system” to generate change.
B.) The pioneers crossed the mountains in late fall when the trees were bare and the views were good.
The trail was arduous and snaked through a large area until Oregon. So, the pioneers had to consider weather conditions to move, or the trail would turn into worst with the snow.