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giant snakehead
The giant snakehead or giant mudfish (''Channa micropeltes'') is among the largest species in the family Channidae, capable of growing to in length and a weight of . It is native to the fresh waters of Southeast Asia (south Indian populations are now regarded as a separate species, ''C. diplogramma''),〔〔Benziger A, Philip S, Raghavan R, Anvar Ali PH, Sukumaran M, et al. (2011). ''Unraveling a 146 Years Old Taxonomic Puzzle: Validation of Malabar Snakehead, Species-Status and Its Relevance for Channid Systematics and Evolution.'' PLoS ONE 6(6): e21272〕 but has also been introduced elsewhere, including the United States where considered invasive. Other names include xaal (শাল মাছ) in Assam, red snakehead, redline snakehead, and ''ikan toman'' (where ikan is "fish" in both Indonesian and Malay). The giant snakehead is known in Thai language as ''pla chado'' ((タイ語:ปลาชะโด)).〔(Fishing in Thailand ) 〕
==Biology==
The young of the giant snakehead are red in color, with orange and black lateral stripes appearing after about two months. As the giant snakehead matures, it loses its stripes and redness, and instead develops a bluish-black and white pattern on its upper body. Juveniles sold in the aquarium fish trade are commonly called "red snakeheads". They can get up to long and a weigh .〔 Giant snakeheads are the most aggressive of the about 35 species of snakeheads.
The species has the ability to crawl onto land and breathe air, although they are only able to do this in muddy or swampy areas, hence the nickname "mudfish".
Its ability to breathe air using a primitive lung located just behind the gills allows it to survive in stagnant water where oxygen levels are low, by coming to the surface and taking a small gulp of air. It also enables the snakehead to travel short distances on land, although it is unable to hunt while on land, as it cannot support itself at all with its small fins in comparison to its large body.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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