Unlike bony fish, sharks have a complex dermal corset made of flexible collagenous fibers and arranged as a helical network surrounding their body.

Unlike bony fish, sharks do not have gas-filled swim bladders for buoyancy.

Unlike most bony fish, sharks are K-selected reproducers, meaning that they produce a small number of well-developed young as opposed to a large number of poorly developed young.

Unlike the softshell turtles of the family Trionychidae, pig-nosed turtles retain a domed bony carapace beneath their leathery skin, rather than a flat plate.

Unlike the Eleutherians, who were primarily farmers, the first settlers on New Providence made their living from the sea, salvaging ( mainly Spanish ) wrecks, making salt, and taking fish, turtles, conchs and ambergris.

Unlike other fish, shark gill slits are not covered, but lie in a row behind the head.

Unlike their ancestor Poseidon who is always fully anthropomorphic in ancient art ( this has only changed in modern popular culture ), Tritons ' lower half is that of a fish, while the top half is presented in a human figure.

Unlike oily fish, white fish contain oils only in their liver, rather than in their gut, and can therefore be gutted as soon as they are caught, on board the ship.

Unlike many other physostome fish, the trout do not use their bladder as an auxiliary device for oxygen uptake, relying solely on their gills.

Unlike eared seals and true seals, which feed primarily by hunting fish and squid in the water column, walrus generally prefer clams and other invertebrates living on the ocean floor.

Unlike Norway, Denmark did not need Iceland's fish and homespun wool.

Unlike other coastal regions in Korea, kimchi in this area does not contain much salted fish.

Unlike spin fishing where the line is already on the reel, playing a large fish with fly line and a fly reel can present a special challenge.

Unlike the gills of fish, human lungs are adapted to the exchange of gases at atmospheric pressure, not liquids.

Unlike the " white " Sterna terns, these birds do not dive for fish, but forage on the wing picking up items at or near the water's surface or catching insects in flight.

Unlike some of its immediate neighbors in the Texas Highland Lakes reservoir system, Lake Marble Falls is not infested with hydrilla, a non-native invasive plant from Asia thought to have been introduced to the U. S. via the tropical fish industry.

Unlike most other fish species which are chilled or frozen, groupers are usually sold live in markets.

Unlike the Great White Pelican it does not form large feeding flocks and is usually found to fish singly or in small flocks.

Unlike the " fish owls " that were also considered to be included in Keputa, the Barred and the Spot-bellied species are not closely tied to riparian habitats and piscivorous eating habits.

Unlike commercially available tropical fish, whose behavior patterns and tank compatibilities are well documented, coldwater fish require much local ichthyology knowledge in order to maintain them.

Unlike in the adventure mode, after five minutes all purchase options are open so that there is no need to purchase specific upgrades or special fish to be able to buy other items or egg pieces.

Unlike the various Pacific salmon species which die after spawning ( semelparous ), the Atlantic salmon is iteroparous, which means the fish may recondition themselves and return to the sea to repeat the migration and spawning pattern several times, although most spawn only once or twice.

Unlike conventional auctions, bids are non-refundable ; if one player bids 65 for psyche and another wins with a bid of 66, then the character with 66 is " superior " to the character with 65 even though there is only one bid difference.

Unlike the other Ainu clans currently living in Russia, there is considerable doubt whether the Nakamura clan of Kamchatka should be identified as Northern Kurils Ainu, Southern Kurils Ainu or as Kamchatka Ainu.

Unlike his translation of the Pastoral Care, Alfred here deals very freely with his original and though the late Dr. G. Schepss showed that many of the additions to the text are to be traced not to Alfred himself, but to the glosses and commentaries which he used, still there is much in the work which is solely Alfred's and highly characteristic of his style.

Unlike France or Germany, there are no special administrative courts of first instance in the Netherlands, but regular courts have an administrative " chamber " which specializes in administrative appeals.

Unlike the NES or Sega Master System, there were few add-on peripherals for the 7800, though its backwards compatibility feature allowed it to be compatible with most Atari 2600 peripherals.

Unlike a conventional tank water heater, the tank is filled only when there is sunlight.

Unlike in soccer, the convention in rugby is for the home side to accommodate its guests when there is a clash of kit.

Unlike binary-addressed computer main memory, there is nothing in a disk drive that influences it to have a total capacity easily expressed using a power of 1024.

Unlike precious metals such as gold or platinum, gem diamonds do not trade as a commodity: there is a substantial mark-up in the sale of diamonds, and there is not a very active market for resale of diamonds.

Unlike traditional HTML with its large range of character entity references, in XML there are only five predefined character entity references.

Unlike Association Croquet, there are no additional turns for hitting other balls.

Unlike the ETL-based data warehouse, the integrated source data systems and the data warehouse are all integrated since there is no transformation of dimensional or reference data.

Unlike other heliozoans, the microtubules are not in any regular geometric array, there does not appear to be a microtubule organizing center, and there is no distinction between the outer and inner cytoplasm.

Unlike most similar bacteria, enterobacteria generally lack cytochrome C oxidase, although there are exceptions ( e. g. Plesiomonas shigelloides ).

Unlike Maroni, there is no curfew on the Oyapock.

Unlike the feel of pain, which can be fully absent in some human conditions, there is no such condition as congenital absence of fear ( although psychopaths are known to have a much lessened feeling of fear ).

Unlike file sharing systems, there is no need for the uploader to remain on the network after uploading a file or group of files.

Unlike the old code of points, there are two separate scores.

Unlike other Indian schools of philosophy, the Cārvākas argued that there is nothing wrong with sensual indulgence.

Unlike most items, there is no limit on the number of Holy Orbs you may include in an army.

Unlike domain names on the Internet, there is no globally defined list of interwiki prefixes, so owners of a wiki must define a mapping appropriate to their needs.

Unlike in a large number of states, there is no domicile quota in JU as well as for the remaining engineering colleges admitting students through the WBJEE.