For example, they can focus on the plants or on the animals, study the rainforest's canopy, or investigate the human dangers that threaten its existence.
(they; can focus; on the plants or on the animals) (they; study; the rainforest's canopy) (they; investigate; the human dangers that threaten its existence) (the human dangers; threaten; its existence)
they they they the human dangers
can focus study investigate threaten
on the plants or on the animals
the rainforest's canopy
the human dangers that threaten its existence
its existence