Because guinea pigs ' teeth grow constantly, they routinely gnaw, lest their teeth become too large for their mouth, a common problem in rodents.

Because the guinea pig has a stout, compact body, the animal more easily tolerates excessive cold than excessive heat.

Because guinea pigs are one of the few animals which, like humans, cannot synthesize vitamin C but must obtain it from their diet, they are ideal for researching scurvy.

Because of this restriction, Galen performed anatomical dissections on living ( vivisection ) and dead animals, mostly focusing on pigs and primates.

Because pigs are more readily infected with avian influenza viruses than are humans, they were suggested as the original recipients of the virus, passing the virus to humans sometime between 1913 and 1918.

Because pigs are susceptible to avian, human and swine influenza viruses, they potentially may be infected with influenza viruses from different species ( e. g., ducks and humans ) at the same time.

Because the customer refuses to accept delivery, Flannery is forced to feed and house what he now calls the " dago pigs " in his office, until he receives permission from his superiors to return the pigs to the company warehouse.

Because the density is less than with fur, pigs are vulnerable to sunburn.

Because pigs are intermediate hosts of the parasite, completion of the life cycle occurs in regions where humans live in close contact with pigs and eat undercooked pork.

Because piglets grow quickly as they become adult pigs, this would require that at least one piglet per year had to be trained for the role of Arnold during the seven years that the show was in production.

Because of extensive habitat destruction by feral goats, sheep and pigs, the species is endangered, and may very well be extinct.

Because it does not have a rostral bone in the nose, a babirusa does not dig with its snout like other pigs do except in mud and swampy grounds.

Because pot-bellied pigs are the same species as ordinary farmyard pigs and wild boars, they are capable of interbreeding.

Because Christianity teaches not only salvation in history, but salvation by the history of Christ, such an interpretation of death would require a drastic revision of the Christian understanding of the work of Christ.

Because evolutionary naturalism proposes an empirical account of morality, it does not require morality to exist objectively ; Linville considers the view that this will lead to moral scepticism or antirealism.

Because uniformed volunteer disaster responders are accorded a higher level of trust than unaffiliated volunteers when responding in a disaster, many sponsoring agencies require a criminal background-check of all trainees before allowing them to participate on a CERT.

Because the physics of a disc require " snap " or " flick ", which means putting spin on the disc, new players generally find that throwing a distance driver accurately can be somewhat difficult and will require experience with disc golf disc response.

Because different writing systems require different parts of the brain to process the visual notation of speech, children with reading problems in one language might not have a reading problem in a language with a different orthography.

Because a trial would require the " presumption of innocence ," such a proceeding would contradict the mission of the National Convention.

Because it is the shallowest, it is also the warmest of the Great Lakes, and in 1999 this almost became a problem for two nuclear power plants which require cool lake water to keep their reactors cool.

Because mitochondria are dynamic organelles constantly undergoing fission and fusion events, they require a constant and well-regulated supply of phospholipids for membrane integrity.

Because any serious side effects will usually appear within the first twelve weeks, the guidance does not require patients already receiving treatment to stop taking the drug.

Because of the rarity of cancers which require the partial or total removal of the penis, support from people who have had the penis removed can be difficult to find locally.

Because turbomolecular pumps only work in molecular flow conditions, a pure turbomolecular pump will require a very large backing pump to work effectively.

Because trackballs for personal computers are stationary, they may require less space for operation than a mouse, and may simplify use in confined or cluttered areas such as a small desk or a rack-mounted terminal.

Because these two options require special server configuration, most websites do not make use of them.

Because brain injuries can be life threatening, even people with apparently slight injuries, with no noticeable signs or complaints, require close observation ; They have a chance for severe symptoms later on.

Because of the high air pressure they produce in the cabinet, subwoofer enclosures often require internal bracing to distribute the resulting forces.

Because of the lack of infection-fighting neutrophils, a bacterial infection can spread rapidly ; this fever is, therefore, usually considered to require urgent medical attention.

Because many free email services do not require valid identifying information, and also allow communication with many victims in a short span of time, they are the preferred method of communication for scammers.

Because the momentum of the forward cast must rotate the spool as well as propel the fishing lure, bait casting designs normally require heavier lures (> 1 / 4 oz.

Because of the longer distance, regulations require two drivers per car for this race.

Because this presents a significant advantage to the team winning the coin toss to decide who receives the first overtime possession, the NFL moved in 2011 to require that if both teams have not had possession of the ball prior to the first score, then the team who does have possession must score a touchdown to end the game, preventing the team winning the coin toss from making a much shorter drive down the field and kicking a " golden goal " without the other team having a chance to touch the ball.

Because of the fundamental value of land and real estate to the local and global economy, land surveying was one of the first professions to require Professional Licensure.

Because bicycles require less steep grades than hikers, bike trails may have multiple switchbacks, while these may not be necessary for hikers.

Because the ablutions necessarily require consuming the Holy Mysteries ( the Body and Blood of Christ ), a priest or deacon may only perform them after having fully prepared himself through fasting and the lengthy Preparation for Holy Communion.

Because Bright's speeches were so much a part of him, there are long and numerous quotations, which, far from making the biography diffuse, help to give us the feel of the man.

Because the body contains so much liquid, transmission of ultrasonic signals proceeds fairly well in muscles and blood vessels.

Because the rake angle Af at the tip of the knife is very much smaller ( or even negative ) when compared to the value of **yc for the major portion of the knife, a very rapid increase in cutting force with thickness will result.

Because I liked this sad person so much, I said, `` Will you have a drink with me ''??

Because and can be very similar numbers, the precision of the result can be much less than the inherent precision of the floating-point arithmetic used to perform the computation.

Because the length of the lunar month is not an even fraction of the length of the tropical year, a purely lunar calendar quickly drifts against the seasons, which don't vary much near the equator.

Because the de facto administration is recognized only by Turkey, it has had much difficulty arranging foreign financing, and foreign firms have hesitated to invest there.

Because of Kidd's refusal to salute, the Navy vessel's captain retaliated by pressing much of Kidd's crew into naval service, this despite rampant protests.

Because much physical and spiritual violence was done to Jews in the name of Jesus and his followers, and because evangelism is still an active aspect of many church's activities, many Jews are uncomfortable with discussing Jesus and treat him as a non-person.

* In the March 1971 issue of the magazine Shogaku 4-nensei: Because visitors from the future were causing too much trouble, the government in the 22nd Century passed a bill to ban time-travelling altogether, meaning Doraemon would have to return to his time era.

Because much of this pollution drained into and affected Lake Erie, the lake itself was considered " dead " and unable to support aquatic life.

Because the bacterium had so much energy, it probably leaked some of it as Adenosine triphosphate into the cell's cytoplasm.

Because this epistle is much shorter than 2 Peter, and due to various stylistic details, some writers consider that Jude was the source for the similar passages of 2 Peter.

Because of his close connection with the great royal families of Germany, France, England and Denmark, Callistus ' papacy was received with much anticipation and celebration throughout Europe.

Because children attend school longer now and have become much more familiar with the testing of school-related material, one might expect the greatest gains to occur on such school content-related tests as vocabulary, arithmetic or general information.

Because it is warm, the surface radiates far IR thermal radiation that consists of wavelengths that are predominantly much longer than the wavelengths that were absorbed ( the overlap between the incident solar spectrum and the terrestrial thermal spectrum is small enough to be neglected for most purposes ).

Because she was not considered physically beautiful, and thus not thought to have much chance of marriage, and because of her intelligence, her father invested in an education not often afforded women.

Because of the particular rarity of the granite, the best stones can cost as much as US $ 1, 500.

Because of the ambiguity surrounding Louis Napoleon's political positions, his agenda as president was very much in doubt.

Because the waters of the Tigris and Euphrates above their confluence are heavily silt-laden, irrigation and fairly frequent flooding deposit large quantities of silty loam in much of the delta area.

Because there seems to be no acceptable alternative available, political support for the much troubled TBS-system remains, in spite of the controversy.

Because of Ribbentrop's firmly held views that Britain was Germany's most dangerous enemy and that an Anglo-German war was thus inevitable, it scarcely mattered to him when his much desired war with Britain came.

Because of the manner in which the head of the Soviet project, Lavrenti Beria, used foreign intelligence ( as a third-party check, rather than giving it directly to the scientists, as he did not trust the information by default ) it is unknown whether Fuchs's fission information had a substantial effect ( and considering that the pace of the Soviet program was set primarily by the amount of uranium they could procure, it is hard for scholars to accurately judge how much time this saved the Soviets ).

Because of this, these devices are usually operated between crossed polarizers such that they appear bright with no voltage ( the eye is much more sensitive to variations in the dark state than the bright state ).

Because the Earth is much heavier than the Moon, the barycenter is located within the Earth ( about below the surface ).