While historically thought of as simple, leathery structures composed of skin, research has since shown that the wing membranes of pterosaurs were actually highly complex and dynamic structures suited to an active style of flight.

While this skim-feeding view became widely accepted, it was not subjected to scientific research until 2007 when a study showed that for such large pterosaurs it was not a viable method because the energy costs would be too high due to excessive drag.

While this influence is a complex matter, depending upon personality factors in the individual as well as upon his social-class experience, there probably are some general statements about social-class background and educational policy that can be made with a fair degree of truth.

While he continued to be prolific throughout the 1930s and 1940s, he is probably best known for his 1956 film The Ten Commandments ( which is very different from his 1923 film of the same title ).

While the earlier smaller species were insectivores, the later marmot-sized Cimolestes magnus probably took larger prey and were definitely a carnivore to some degree.

While in a trance the Pythia " raved " – probably a form of ecstatic speech – and her ravings were " translated " by the priests of the temple into elegant hexameters.

While FBI investigators have insisted from the beginning that Cooper probably did not survive his risky jump, the agency maintains an active case file — which has grown to more than 60 volumes — and continues to solicit creative ideas and new leads from the public.

While Allen participated in some of the actions to drive surveyors away, he also spent much time exploring the entire territory, probably ranging as far north as the site of Burlington in his wanderings.

While the island has probably been sighted by navigators since at least the 16th century, it takes its name from the British ship Europa, which visited it in December 1774.

While his design was sound and the plans were probably correct, or at least debuggable, the project was slowed by various problems including disputes with the chief machinist building parts for it.

While not featuring the censoring mosaics of the original Japanese version, the US release of La Blue Girl was edited during the initial VHS release and all scenes featuring Miko's companion Nin-Nin engaged in a sexual act were removed, probably to avoid the charge of pedophilia, in spite of the fact that the character is not a minor but a dwarf ninja.

While many probably expected the Jaguars to just be happy to be there, the Jaguars won 30 – 27, and knocked Buffalo QB Jim Kelly out of what would turn out to be the last game of his career.

While it is commonplace to detect their influences in Kent ( for example, the practice of partible inheritance known as gavelkind ), the Jutes in Hampshire and the Isle of Wight vanished, probably assimilated to the surrounding Saxons, leaving only the slightest of traces.

While Greek astronomy — thanks to Alexander's conquests — probably influenced Indian learning, to the point of introducing trigonometry, it seems to be the case that Indian mathematics is otherwise an indigenous tradition ; in particular, there is no evidence that Euclid's Elements reached India before the 18th century.

While most of a Pteranodon flight would have depended on soaring, like long-winged seabirds, it probably required an occasional active, rapid burst of flapping, and studies of Pteranodon wing loading ( the strength of the wings vs. the weight of the body ) indicate that they were capable of substantial flapping flight, contrary to some earlier suggestions that they were so big they could only glide.

While his father visited his lands from Scotland to France, Richard probably stayed in England.

While Sapir never made a point of studying directly how languages affected the thought processes of their speakers, some notion of ( probably " weak ") linguistic relativity lay inherent in his basic understanding of language, and would be taken up by his student Benjamin Lee Whorf.

While there he probably associated with the radical Saudi cleric named Sulayman al-Alwan as several other future hijackers had.

While the city was burned to force the Mongols to withdraw quickly, most of the population probably survived.

While the Aquitani were probably Vascons, the Belgae would thus probably be counted among the Gaulish tribes, perhaps with Germanic elements.

While our earliest Hominid ancestors were probably frugivores or omnivores, there is evidence that earlier Homo species, and possibly also australopithecine species utilised larger animals for subsistence.

While many parties to the conflict blamed others ( the Indians blamed the French for bringing " bad medicine " as well as denying them prizes at Fort William Henry ), the disease was probably spread through the crowded conditions at William Henry after the battle.

While this was probably just folk etymology made popular by Pliny the Elder, it was well known by the time the term came into common use.

While Fritigern asked Valens to allow the Thervingi to cross the northern Roman border and settle in Moesia or Thracia, with the Danube River and Roman frontier forts protecting them from the Huns, ( thus this was a form of asylum ), Athanaric and many of his followers retreated to Caucaland ( probably Transylvania ).

While all extant species are freshwater, this species was probably either brackish or marine.

While the final combat of the campaign was being worked out at Jonesborough, Thomas, on Sherman's instructions, ordered Slocum, now commanding the Twentieth Corps, to make an effort to occupy Atlanta if he could do so without exposing his bridgehead to a counterattack.

While fifty years before, Albert Goodwill Spalding, secretary of the Chicago Ball Club of the National League, could write earnestly to the manager of the Buffalo club and request a guarantee of one hundred dollars for a baseball game in August, in this Golden Era a game at the Yankee Stadium might bring in nearly a hundred thousand dollars at the gate.

While there is no generally accepted formal definition of " algorithm ," an informal definition could be " a set of rules that precisely defines a sequence of operations.

While current mouthwash treatments must be used with a degree of frequency to prevent this bacteria from regrowing, future treatments could provide a viable long term solution.

While the Mercury capsule could only support one astronaut on a limited Earth orbital mission, the Apollo spacecraft was to be able to carry three astronauts on a circumlunar flight and eventually to a lunar landing.

While citizens voting in the assembly were the people and so were free of review or punishment, those same citizens when holding an office served the people and could be punished very severely.

Some scholars believe that the apologetic view of Luke ’ s work is overemphasized and that it should not be regarded as a “ major aim of the Lucan writings .” While Munck believes that purpose of Luke ’ s work is not that clear-cut and sympathizes with other claims, he believes that Luke ’ s work can function as an apology only in the sense that it “ presents a defense of Christianity and Paul ” and may serve to “ clarify the position of Christianity within Jewry and within the Roman Empire .” Pervo disagrees that Luke ’ s work is an apology and even that it could possibly be addressed to Rome because he believes that “ Luke and Acts speak to insiders, believers in Jesus .” Freedman believes that Luke is writing an apology but that his goal is “ not to defend the Christian movement as such but to defend God ’ s ways in history .”

While in the southern colonies, they could farm almost year round, in the northern colonies, the growing seasons were very restricted.

While administrative decision-making bodies are often controlled by larger governmental units, their decisions could be reviewed by a court of general jurisdiction under some principle of judicial review based upon due process ( United States ) or fundamental justice ( Canada ).

While this was OK for Europe, it meant that GSM could not cover large, sparsely populated rural areas of Australia cost effectively.

While this solves the logical problem, one could argue that the philosophical problem remains.

While Ricardo accepted Smith's labour theory of value, he acknowledged that utility could influence the price of some rare items.

While this could be interpreted as a justification for state action to reduce poverty, it was used by classical liberals to justify inaction with the argument that the net benefit to all individuals would be higher.

While other predictions show there could be as many as 28, 000 species in North America, including those currently undescribed, a realistic estimate of the little-studied Australian beetle fauna's true diversity could vary from 80, 000 to 100, 000.

While other knowledge could be a figment of imagination, deception or mistake, the very act of doubting one's own existence serves to some people as proof of the reality of one's own existence, or at least that of one's thought.

While clavichords were typically single manual instruments, they could be stacked to provide multiple keyboards.

While Canion developed an 18-month plan to create a line of low-priced computers, Rosen sent his own Compaq engineering team to Comdex without Canion's knowledge and discovered that a low-priced PC could be made in half the time and at lower cost than Canion's initiative.

While rival Dell Computer had 55 % growth in U. S. PC sales in the first quarter of 1999, Compaq could only manage 10 %.

While at Wham-O, Headrick redesigned the Pluto Platter reworking the rim height, disc shape, diameter, weight and plastics, creating a controllable disc that could be thrown accurately.

While Jackson considers the theatrical releases of those three films to be a final " director's cut " within the constraints of theatrical exhibition, the extended cuts were produced so that fans of the material could see nearly all of the scenes shot for the script to develop more of J. R. R. Tolkien's world, but which were originally cut for running time, or other reasons.

While she could have summarily fired him, since he was still without a contract, she chose not to do so.

While encyclopedias in larger languages, having large markets that could support a large editorial staff, churned out new 20-volume works in a few years and new editions with brief intervals, such publication plans often spanned a decade or more in smaller languages.

While his family remained in Arlington, he spent most of his time either in Bennington or on the road, where he could avoid his wife's nagging.

While repeaters could isolate some aspects of Ethernet segments, such as cable breakages, they still forwarded all traffic to all Ethernet devices.