Editing Arapaima (section)

==Ecology==
The diet of the arapaima consists of fish, [[crustacean]]s, fruits, seeds, insects, and small land animals that walk near the shore.<ref>{{Cite web|url=https://nationalzoo.si.edu/animals/arapaima|title = Arapaima|date = 25 April 2016}}</ref> The fish is an [[Fish#Air breathing|air breather]], using its [[labyrinth organ]], which is rich in blood vessels and opens into the fish's mouth,<ref name=Ferraris>{{cite book| author = Ferraris, C.J. | year = 2003 | chapter = Family Arapaimatidae | editor = Reis, R.E. |editor2=Kullander, S.O. |editor3=Ferraris, C.J. | title = Check List of the Freshwater Fishes of South and Central America | pages = 582–588 | publisher = EDIPUCRS | location = Porto Alegre, Brazil}}</ref> an advantage in oxygen-deprived water that is often found in the [[Amazon River]]. This fish is able to survive in [[oxbow lake]]s with dissolved oxygen as low as 0.5 ppm. In the [[wetlands]] of the [[Araguaia River|Araguaia]], one of the most important refuges for this species, it is the top [[predation|predator]] in such lakes during the low-water season, when the lakes are isolated from the rivers and oxygen levels drop, rendering its prey lethargic and vulnerable.

Arapaima may leap out of the water if they feel constrained by their environment or harassed.