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fin

fin organ of locomotion characteristic of fish and consisting of thin tissue supported by cartilaginous or bony rays. In some fish, e.g., the eel, a single fin extends from the back, around the tail, and along the ventral surface. In the majority of fishes, however, there are one, two, or three dorsal fins, a distinct tail fin, and an anal fin. These are called median, or unpaired, fins. In addition to these unpaired fins, most fish also have paired fins. These are the pectoral fins, placed just back of the gills, and the pelvic, or ventral, fins, variable in position and sometimes lacking entirely. The tail is an important organ of locomotion and the paired fins are used for steering, checking speed, balancing, and for slow movements. An adipose fin (fatty tissue without support) is found behind the dorsal fin in some fish, e.g., the salmon and the catfish. See climbing perch ; flying fish .

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

	Climbing down: Berkeley tree sit ends after nearly 2 years.(THIS WEEK)(Brief article) Newspaper article from: Our Planet; 9/15/2008; ; 200 words ; ...non-violent, direct action environmental protest are gone may finally be right. Last week four tree-sitters abandoned their perch--after 21 months when as many as 150 different protestors participated off and on--atop an 80-foot redwood tree that formerly... Read more
	Andersen in buoyant mood after reaching the final in his home country. Newspaper article from: Peterborough Evening Telegraph (Peterborough, England); 6/16/2008; 348 words ; HANS Andersen insists he can still fulfil his ambition of climbing onto the World Championship rostrum this year. The Panthers...standings - still three places and 19 points off the podium perch he craves. But with seven of the 11 GP rounds still ahead...points still up for grabs and I am convinced I can continue ... Read more
	Can Saddam climb down? (Saddam Hussein) Magazine article from: National Review; 10/1/1990; ; 700+ words ; ...terrible blaze, taking as many others with him as possible, he is clearly considering his options for climbing down from the perilous perch on which he has placed himself The odds, of course, are now very much stacked against Saddam, as he should... Read more
	Tree sitter climbs down, ends protest.(Environment)(Logging: Erin Mannix of Eugene had spent 2 1/2 weeks in a Douglas fir in an old growth timber sale.) Newspaper article from: The Register-Guard (Eugene, OR); 7/20/2002; 244 words ; ...logging on the Willamette National Forest came down from her perch Thursday night. Erin Mannix, who had gone by the name Basil...law enforcement officers took her name and confiscated her climbing gear. She faces a charge of interfering with an agricultural... Read more
	Risky moves can bring out childlike faith.(Columns)(Column) Newspaper article from: The Register-Guard (Eugene, OR); 8/26/2003; 617 words ; ...scamper up a 38-foot pole. On a tiny perch and, hardly hesitating, she sailed into...soprano. A risk worth taking. I hit right. Climbing Mount Hood? Experienced climbers have...three months earlier. Standing on the perch, I look at the young man below who's...Cher. The helper standing with me on the ... Read more
	"Fitting in." (information about tree frogs) Magazine article from: U.S. Kids; 6/1/1997; ; 221 words ; ...are known for their keen jumping ability. This frog prefers climbing. Most frogs are green, but the tree frog changes color to blend...match its surroundings. Some tree frogs are green when they perch on a leaf, and then turn brown when they move to a branch or... Read more
	Claws for Concern.(clawing is natural behavior for all cats) Magazine article from: Animals; 9/1/2000; ; 700+ words ; ...tabby, awakens shortly after dawn. She jumps down from her perch, fully extends her front legs, and stretches, digging her claws...on the front--the fifth one placed like a thumb to help when climbing or holding prey. A specialized system of tendons and muscles... Read more
	OUTDOORS BRIEFLY.(Recreation) Newspaper article from: The Register-Guard (Eugene, OR); 4/25/2006; 700+ words ; ...Nontechnical Ascents, will present a slideshow Thursday on climbing Oregon peaks that don't require the use of climbing equipment. The program, set for 7 p.m. in 180 Prince Lucien...presentation by photographer Brent McGregor, who spent four years climbing, hiking and exploring the Oregon Cascades in ... Read more
	Three valleys. (Special Advertising Feature). Magazine article from: Sunset; 7/1/2003; 700+ words ; Beginning in the Central Valley and climbing to Yosemite Valley, with an excursion into Owens Valley, this...boating, swimming, and picnicking, or to Lake McClure for bass and perch fishing. From Merced, go south on Hwy. 99 to. MADERA (34mi/54km... Read more
	Up and over the Marin Headlands. (in Golden Gate National Recreation Area, California) (Walking for Your Life) Magazine article from: Sunset; 5/1/1990; 386 words ; ...key 1-mile section of the Coastal Trail has been completed, climbing up and over the headlands to bridge the last gap in this...bobbing sailboats, and tree-mantled Angel Island. Continue climbing past lupine and Indian paintbrush to a signed junction, then...red-brown agate, bright red carnelian. Anglers can ... Read more

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Related entries from encyclopedias, dictionaries, and thesauruses

	climbing perch Book article from: The Columbia Encyclopedia, Sixth Edition ...land. It is not related to the true perch. Labyrinth fishes are spiny-finned fishes...suffocate (drown) if held underwater. The climbing perch, Anabas testudineus, of SE Asia, is...reaches a length of 10 in. (25 cm). Climbing perches travel in search of water when...mudskipper is of a different ... Read more
	perch Book article from: The Oxford Pocket Dictionary of Current English ...superiority or preeminence: will this knock London off its perch as Europe's leading financial center? perch 2 • n. ( pl. same or perches ) an edible freshwater...orange lower fins. Its three species include the yellow perch ( P. flavescens ) of North America. The perch family also includes ... Read more
	walking fish Book article from: The Columbia Encyclopedia, Sixth Edition see climbing perch . Read more
	labyrinth fish Book article from: The Columbia Encyclopedia, Sixth Edition see betta ; climbing perch ; gourami . Read more
	betta Book article from: The Columbia Encyclopedia, Sixth Edition ...then guarded by the male. Several hundred young hatch out in 24 to 30 days. Like its relatives the gourami and the climbing perch , the betta is equipped to breathe air as well as water and must surface from time to time. It is classified in the... Read more

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