Their venomous spines are on both dorsal fins, the pectoral fins, pelvic fins, anal fins, and several on the gill cover.

Their dorsal fins vary in shape depending on how old the whale is and whether it is male or female.

Their ears are small with dorsal borders folded laterally.

Their two dorsal fins are connected by a membranous structure and their eyes are highly reduced.

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.

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 back and dorsal fin are a darker grey than the rest of the body.

Their bodies are deep and elongated with forked tail fins and widely separated dorsal fins.

Their bodies are elongate and fusiform, with spinous and soft dorsal fins widely separate.

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 eyes and terminal mouths are large, with a single long, continuous dorsal fin which begins just behind the head ; the anal fin is similarly extensive, and both it and the dorsal fin may either have 1-2 spines, or none at all.

Their adaptation can be seen in many unique physiognomic characteristics such as the dorsal blowhole, baleen teeth, and the cranial ' melon ' organ used for aquatic echolocation.

Their dorsal side is covered with small bumps, which gives a rough texture and appearance while their ventral side is thin, transparent, and smooth.

Their belly is generally golden, and males have a bright orange spot at the base of the dorsal fin.

Their coloration was brownish and / or grayish, with the underside lighter than the dorsal area.

Their watery muscle is not suited to fast swimming and long pursuit, so it is likely that they are ambush predators, using their narrow body profile and silvery colouration to conceal their presence, then use their large dorsal fin to generate large acceleration, and large mouth and teeth to engulf prey before it can escape.

Their dorsal skin is smooth, while their ventral skin is granular.

Their dorsal skin can be green, gray, or tan depending on the temperature, humidity, or their mood.

Their ventral skin is a whitish color, and the dorsal and ventral skin is separated by a dark brown lateral stripe that goes from the eyes to the groin.

Their knuckle walking involves flexing the tips of their fingers and carrying their body weight down on the dorsal surface of their middle phalanges ( middle segments of their fingers ).

Their spiny dorsal fin is of medium height, strong and sharp.

Their dorsal and anal fins are long and continuous, with the dorsal fin extending forward onto the head.

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 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 fins may be yellowish or dusky.

" Their tail fins are rounded and truncate and their pectoral fins are enlarged and skinless.

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.