• But that may not be the case in the future as stricter air quality rules are put in place.

• They may yet come back into the national spotlight if they maintain momentum.

• Watermelon, the quintessential summer fruit, may soon be helping to fuel your car as well as your picnic guests.

• City dwellers may handle pressure differently from those who live in less populated areas.

• Observatories or individual sky watchers may be asked to take a look.

• For a quick, inexpensive support for climbing plants, build a simple tipi of natural materials you may already have.

• Deep inside the super-dense hearts of exploding stars, gravity may squash neutron particles from spheres into cubes.

• Many migraine sufferers are reluctant to hit the gym, fearful that pushing themselves too hard may bring on an attack.

• It could charge both punters full price, in which case the student may stay at home.

• Burning wood may seem backward, dirty, and environmentally hostile.

• One day in the future, infection may be fought by simply switching bacterial invaders off.

• But the world's oceans, which may contain as many as two million as yet undiscovered species, have remained largely untapped.

• Natural enemies reduce the loopers population but may not provide adequate control at certain times of the year.

• Brain cells may be the latest victim of a bacterial bad guy already charged with causing ulcers and stomach cancer.

• It may be impossible to define the agent's job in a way that can be monitored effectively.

• The inner ring had no such gate or doorway and may have been accessed with ladders.

• In the case of malaria, however, that defense mechanism may backfire.

• Knowing the maples are at risk may lead to changes in how the infestation is being fought.

• Perennial kinds spread rapidly, may become invasive.

• Complexity researchers who study the behavior of stock markets may have identified a signal that precedes crashes.

• Another problem is that first-to-file may make companies rush to put in for a patent before their invention is truly ready.

• Mango may be headed for the list of food that may help prevent or stop cancer.

• The earliest indicator yet of autism may be the presence of flawed cells in the placenta, scientists have discovered.

• Flowering generally weakens these plants, and although they may slowly recover, they often die.

• The confirmed origin of ordinary cosmic rays may need to be unconfirmed.

• Voters may have promoted him beyond his natural abilities.

• Being called a brainiac may be a compliment but when it comes to gray matter, a person can have too much of a good thing.

• It may be the end of the road for an endangered species of rabbit.

• There may be many more extinct mammals waiting to be rediscovered than conservation biologists previously thought.

• Many of the small businesses may never come back, but those who have not given up yet may hang in.

• Someday, in a house next door, a robot may be playing a game of cribbage with an elderly widow.

• Increasing levels of atmospheric carbon dioxide may not be as helpful to crops as previously thought, according to a new study.

• The other kind, an isotope called helium-3, may not be as familiar.

• The newfound species may have been a staple of some early humans.

• Paint your fantasy in too rosy a hue, and you may be hurting your chances of success.

• When people can learn what others think, the wisdom of crowds may veer towards ignorance.

• Sensors can detect damage that may be invisible to the naked eye.

• Thawing permafrost may soak up greenhouse gas before it begins to spew it out.

• Curiosity may have killed the cat, but it has helped save countless others.

• Distinguishing may and might can be tricky, and several colleagues have raised questions recently.

• Technological change may also allow some parts of the energy and transport business to invade each other's turf.

• Already available drugs may stave off and even reverse debilitating symptoms.

• They may look much the same as ever, their spaces filled mostly by shelves packed tight with.

• Hardpan may be present throughout an entire garden or only in certain parts of it.

• Pre-eclampsia may go away after pregnancy, but its effects on the heart may linger.

• Old drugs are falling from favour, new ones are growing, and the economic slump may shake things up again.

• But the nut-smashing antics of a young female gorilla may help change that perception, experts say.

• Medication that slows progression of dementia may also reverse injury that causes cerebral palsy in preterm infants.

• Stethoscopes carried by ambulance crews may be exposing patients to drug-resistant bacteria, a new study reports.

• The enemy of our enemy may be our new partner in stopping a global health crisis.

• Antibacterial soaps and other cleaners may actually be aiding in the development of superbacteria.

• Newsrooms may look different today, but their need for speed never wavers.

• The olive varieties may or may not be identified on the label.

• Allergy symptoms may feel even worse after a drink, studies show.

• Cancer in wild animals may be triggered or accelerated by environmental contaminants, some researchers argue.

• Surprising new research about the act of remembering may help people with post-traumatic stress disorder.

• But if growth is progressing significantly out of bounds, you may have to dig out the portions that have gone too far.

• Chronic stress may take a bigger toll on a woman's immune system than divorce or job loss, a new study suggests.

• But the rods may be tempting rare turtles to become snagged on miles of hooks.

• Antioxidants, abundant in pomegranates, counter free radical damage but may not delay aging.

• Hell, they may have been little people, but look where they were found.

• Gold prospectors may one day rely on lowly bacteria to point them to deposits of the precious metal.

• With our approval, these third parties also may place cookies during your visit.

• Flowers are followed by woody capsules that can last for years and may resemble rows of beads pressed into bark.

• The same biochemistry that helps garlic spice up good cooking may also hold potential for pain-fighting drugs, scientists say.

• Your boss may balk, but a new study shows that getting some midday shut-eye could be heart-healthy.

• Heart disease may appear to be a recent problem, brought on by modern living, but it's been plaguing humanity since ancient times.

• The same may be true for angel's trumpet, whose fragrance is released only in the evening.

• If you get tongue-tied when trying to learn a new language, your genes may be to blame, a new study suggests.

• The insula, an area of the brain largely ignored by researchers, may hold the key to breaking harmful addictions.

• They may alter evaporation rates or their angle to the sun to stay near this temperature, which is ideal for photosynthesis.

• Although free-choice may sound great, rats will also have the option of eating whenever they please.

• Those dreams of landing a human being on the planet may become a.

• Standing in the middle of the largest gypsum field in the world, you may feel as if you are on another planet.

• The feed may also get wet and dirty if constantly left out.

• But some experts think bull sharks, which can thrive in freshwater areas as well as the ocean, may be a.

• The neurotransmitter behind addictive behavior may also unleash paranoia.

• Second, you may be able to build one that is even more hospitable to intelligence than this one.

• If pests of this sort are a nuisance for you, you may want to clear away their hiding places periodically.

• Snakelike robots may soon fight terrorism, save lives, and repair everything from battleship engines to the human body.

• Imaging study finds that pure oxygen feeds routinely administered to revive stroke victims and others may do more harm.

• Third, you may be able to move into the new universes you create.

• In the desert, plants may rest in summer, then resume flowering in fall.

• Building sand castles and playing beach volleyball may be grittier vacation pastimes than you think, according to a new report.

• If you're going to the hospital, you may want to leave your cell phone at home.

• But if those folks happen to be children of the eighties, they may not even realize that they've heard go-go before.

• Because roots may extend several feet beyond the drip line, be sure to spread fertilizer out wide.

• But they are also inspiring what may be the next wave in lifesaving collision-avoidance systems.

• Study shows that that pace at which a brain cell activates a key protein may influence its role in.

• Come for a visit and you may find yourself wanting to stay.

• Depending on weather conditions, the snowmelt may cause writhing.

• One team has found a novel component that may be used to block the blood supply to.

• Gadget churn creates toxic e-waste but recycling may help.

• Flood debris may circulate in ocean gyres for years.

• Severely infected trees are weakened and may stop producing.

• Hunley may have sunk because a lock was removed, breaking a hatch's watertight seal, researchers say.

• Offsets for the emissions that cause climate change from around the globe may have been faked.

• While chlorosis may be due to iron-poor soil, it is more likely that iron is present but simply cannot be absorbed by plants.

• Researchers sifting through extragalactic radio emissions may have found a secondary background.

• May help lower cholesterol and regulate blood sugar.

• Newer hybrids may be showier, but this species is still cherished for its delightful perfume and early bloom time.

• The fact that cities trap heat combined with global warming may mean greater increases in average temperatures and a loss of.

• Leaves produced during summer, however, may not show these symptoms.

• New research reveals that genes related to the debilitating disorder may also provide developmental advantages.

• Grown near the ocean, plant may have a low, spreading habit.

• Also called simple layering, ground layering is an easy way to produce a few new plants, though it may take as long as a year.

• Very heavy feeding and watering may speed their recovery.

• Taprooted forms are difficult to divide but may be propagated by root cuttings.

• At the peak of the growing season, mowing may be needed more than once a week.

• At some point, you may move into a home with a tired, worn lawn.

• Small rooted pieces gathered from the woods may not establish easily.

• If your soil is sandy or rocky, you may need to add compost.

• Caffeine may make it tougher for people with diabetes to control their blood sugar, a new study shows.

• Researchers have suggested for years that male and female athletes may experience sport-related concussions in different ways.

• Germany's popular defence minister may survive a plagiarism scandal.

• The stuff of mystery may be more than meets the eye.

• Eighteen horizontal inches of wall may have more storage possibilities than you think.

• Oxygen-starved ocean dead zones may be more widespread than thought.

• African thunderstorms may hold the key to figuring out why hurricanes form, scientists say.

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