Some of the focuses are primarily on the plant and animal life of the rain forests, but they also discuss the layers of the rain forest and their importance, the destruction of the rain forests, and animal survival in the rain forest.
(Some of the focuses; are primarily; on the plant and animal life of the rain forests) (they; also discuss; the layers of the rain forest and their importance)
Some of the focuses they
are primarily also discuss
on the plant and animal life of the rain forests
the layers of the rain forest and their importance