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Their pectoral fins are quite small ; as a result they steer mostly with their dorsal and anal fins, which makes them very maneuverable, and they also use these fins to move with an exotic type of propulsion reminiscent of a propellor.
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Their and pectoral
Their venomous spines are on both dorsal fins, the pectoral fins, pelvic fins, anal fins, and several on the gill cover.
" Their tail fins are rounded and truncate and their pectoral fins are enlarged and skinless.
Their most distinguishing feature is their pectoral fins: they are composed of two distinct sections, the lower of which consists of between 3-7 long, thread-like independent rays.
Their pectoral rays are thought to serve as tactile structures, helping to find prey within the sediments.
Their pectoral fins are slender and also greatly elongated.
Their bodies are compressed, elongate and scaleless ; the small, slender pelvic fins ( which are absent in only two species ) are situated before the enlarged pectoral fins, and the tail fin is rounded.
Their dorsal fins are often continuous and long ; the pelvic fins typically have a single embedded spine and are short and slender, situated before the pectoral fins.
Their paired pectoral fins combined with single, usually well-developed, dorsal and anal fins ; these and the prolonged anterior tube-like handle, followed by a heterocercal tail resemble features of modern fish that associated with their deftness at predation and evasion.
Their and fins
Their pastel colours, tall fins and extensive chrome make them a favouriste subject for tourist photographs.
Their fins can be used to fight by extending out to serve as sharp-edged weapons.
Their fins could also have been used to attach themselves to plants or similar while they were lying in ambush for prey.
Their caudal fins and anal fins are sharply concave.
Their caudal fins are very small, and except for Guentherus it is merged with the long anal fin ( which has 70 fin rays or more ).
" Their fins — or maybe wings — were longer than their bodies.
Their dorsal fins vary in shape depending on how old the whale is and whether it is male or female.
Their two dorsal fins are connected by a membranous structure and their eyes are highly reduced.
Their development progresses through three morphologic forms: the very young animals have a single pair of fins, an intermediate form has two pairs, and the mature form again has one.
Their two dorsal fins are widely separated with the anterior fin having five spines, the posterior fin having one spine and nine soft rays.
Their fins may be yellowish or dusky.
Their bodies are deep and elongated with forked tail fins and widely separated dorsal fins.
Their dorsal fins are merged, with the first consisting of ten connected spines.
Their bodies are elongate and fusiform, with spinous and soft dorsal fins widely separate.
Their and are
Their consequences are irrelevant -- or there are no consequences at all.
Defoe then commented, `` If they Could Draw that young Gentleman into Their Measures They would show themselves quickly, for they are not asham'd to Say They want only a head to Make a beginning ''.
Their expressed standards concerning sex roles, desirable age for marriage, characteristics of an ideal mate, number of children desired are congruent with the values and stereotypes of the preceding generation -- minus compulsive rebellion.
Their commitments are, for the most part, couched in a familiar idiom.
Their conclusions concerning the untrustworthiness of the West Saxon annals, the confused chronology of Bede, the unreliability of the early positions of the Anglo-Saxon genealogies and the mythological elements contained in Nennius are now mostly accepted.
Their privations are almost beyond endurance.
Their national leader, Robert Bolivar DePugh of Norborne, Mo., says the Minutemen believe that guerrilla tactics are best suited to defeat the Red onslaught.
Their United States tax returns are due April 16, 1962.
Their locations in all parts of the United States, and their locations in the several kinds of educational and research institutions that are the principal homes of our intellectual and artistic strengths also are factors in the Trustees' minds.
Their friends and ours are welcome to share the pool, but on our terms and at our times.
Their experience is quite in contrast with that of children of upper- and upper-middle-class native-born parents, who are more likely to regard education as good for its own sake and to discount the vocational emphases in the curriculum.
Their effects are only superficially startling.
Their names are Mantle and Maris, their team is the Yankees, and their threat is real.
Their autumn tints are all fairly low keyed compared with the fiery stabs of crimson, gold, purple, bronze, blue and vermilion that flame up in North America.
Their metabolic rate is low and as a result, their food and energy requirements are limited.
Their ribs are usually short and may be fused to the vertebrae.
Their skulls are mostly broad and short and are often incompletely ossified.
Their lungs are functional early but the larvae don't make as much use of them as do tadpoles.
Their gills are never covered by gill sacs and are reabsorbed just before the animals leave the water.
Their leaves are of variable size and alternately arranged, or alternate with the upper leaves becoming nearly opposite.
Their beliefs and behavior are difficult to decipher from physical materials, and their languages remain unknown as they had no known writing system.
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