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By Zach Morrow | Articles related to 8th grade NC science standards

DNA sequencing shows how woolly mammoths got that way

In what is being called the "most comprehensive" study of its kind, a team from the University of Chicago claims that it has revealed the massive amount of genetic change needed for woolly mammoths to adapt to their arctic environment. The study, which was published on July 2 in Cell Reports, shows …

DNA

Brain-Eating Amoeba Kills California Woman

A 21-year-old woman from Bishop, California, has reportedly died from a rare but devastating infection caused by a brain-eating amoeba.

Inyo County public health officials told the Reno Gazette-Journal that the woman died on June 20 after being infected by Naegleria fowleri, a microscopic amoeba …

California

Single-celled plankton evolves tiny, human-like eye

The eye is so complex that researchers originally thought it had come from an animal that the plankton had eaten

A single-celled marine plankton has evolved a miniature version of an eye to help see its prey better, researchers believe.

The tiny creature, which can only be seen under a microscope, it …

Scientific Research

The Cambrian Explosion’s Strange-Looking Poster Child

The animal kingdom got off to a slow start. Studies on DNA indicate that the first animals evolved more than 750 million years ago, but for well over 200 million years, they left a meager mark on the fossil record. As best as paleontologists can tell, the animal kingdom during that time consisted …

Evolution

How DNA Technology Is Giving New Hope in Cold Cases

Here's how it used to work: DNA found at a crime scene would be collected and then compared to a database. It was really only helpful if it happened to match an existing criminal profile.

But now a new technology could help solve cases that have been "cold" for decades.

In December, a company in …

DNA

Alaska wildfires char nearly 2 million acres, send smoke to South Carolina

Alaska is on track to have one of its worst wildfire seasons on record, propelled by a combination of warming average temperatures, a historically mild, relatively snowless winter and extremely mild spring.

So far this year, 1.88 million acres have gone up in smoke, from 617 individual fires. June …

Alaska

Tackling Climate Change, One Class at a Time

BAR HARBOR, Me. — Like many residents of this picturesque island town on the edge of Acadia National Park, Zach Soares had trouble keeping his house warm, going through five cords of wood in the winter. So he jumped at an offer last year for free energy improvements through a class project at the …

Climate Change

California Governor Jerry Brown Signs Mandatory Vaccine Law

Law abolishes exemptions for personal beliefs

California Governor Jerry Brown signed a mandatory school vaccination bill into law Tuesday, abolishing the “personal belief” exemption that many parents use as a loophole to avoid vaccinating their children.

Now, under California law, which is among the …

California

Green group's unconventional fight against fracking

(Reuters) - The residents of Grant Township, Pennsylvania, were worried about Little Mahoning Creek, a picturesque trout stream best fished in the spring when the water runs fast.

The Pennsylvania General Energy Company had acquired a federal permit to drill an injection well down 7,000 feet about …

Green Living

Vaccine Against Meningitis B Gets A Boost From CDC

Parents, take note! The Centers for Disease Control and Prevention's vaccine committee has expanded its recommendation for immunization against meningitis B, a rare but potentially deadly strain of meningitis.

The committee's revised guidance, issued late last week, broadens the group of young …

Meningitis

What Do We Do When Antibiotics Don’t Work Anymore? (My TED Talk)

The antibiotic era isn’t actually very old. It begins, depending on how picky you are, with Alexander Fleming’s accidental recognition of the mold that makes penicillin. the first antibiotic, in 1928; or perhaps with the first human test of penicillin, in 1941; but definitely by 1944, when …

TED Talks

California oil spill gushed like hose 'without a nozzle'

LOS ANGELES (AP) — Firefighters investigating a reported petroleum stench at a California beach last month didn't take long to find a spill — oil was spreading across the sand and into the surf. Tracing the source, they found crude gushing from a bluff like a fire hose "without a nozzle," records …

Pipelines

Science AMA Series: I'm Fred Perlak, a long time Monsanto scientist that has been at the center of Monsanto plant research almost since the start of our work on genetically modified plants in 1982, AMA.

Hi reddit,I am a Monsanto Distinguished Science Fellow and I spent my first 13 years as a bench scientist at Monsanto. My work focused on Bt genes, …

Scientific Research

Why Are So Many Shark Attacks Happening in North Carolina?

The state has had an unusual rash of incidents, though experts say the water is still safe.

Updated June 29, 9:30 a.m.

Two more swimmers have been bitten by sharks off the North Carolina coast. That makes six shark attacks in the state in the last three weeks.

From 2005 to 2014, there were a total of …

North Carolina

CNN: Humans Could Cause Next Mass Extinction

Photo courtesy of Guido da Rozze/Flickr

Last week CNN published an article that claims Earth is on the cusp of another mass extinction, similar to the …

Nature

Fracking poses 'significant' risk to humans, says report

A major new scientific study has concluded that the controversial gas extraction technique known as fracking poses a “significant” risk to human …

United Kingdom

Scientists see climate change in action in California wildflower fields

Drier, sunnier winters are stressing California's wildflowers.

These twin trends have conspired to reduce the diversity of wildflower species in a Northern California research meadow by 15% over 15 years, according to a study published this week in the Proceedings of the National Academy of Sciences.

California Drought

Invasive Pacu Fish With Human-Like Teeth Found in New Jersey

But fish’s testicle-eating reputation is a myth, scientists say.

Updated at 7 pm ET.

A relative of the piranhas with a mythical taste for human flesh was found in a New Jersey lake this weekend, setting off fears about the spread of invasive species.

The fish, thought to be a South American pacu, is …

Fish

We're Entering A Sixth Mass Extinction, And It's Our Fault

Species loss rate is 100 times greater than the expected rate

These days, sadly, it’s par for the course to hear of new additions to the list of myriad ways that irresponsible human activity is ruining planet Earth. The list is long and cruel, and although many people take these problems facing …

Extinction

G.M.O. Dilemma: Swaying a Wary Public

Genetic food modification worked out well the first time it was tried.

By planting seeds from the best grain season after season or breeding the best animals to one another, our ancestors changed gene pools and gave civilization its start.

The earliest known practitioners of biotechnology — …

Developing Countries

Can the Bacteria in Your Gut Explain Your Mood?

Eighteen vials were rocking back and forth on a squeaky mechanical device the shape of a butcher scale, and Mark Lyte was beside himself with excitement. ‘‘We actually got some fresh yesterday — freshly frozen,’’ Lyte said to a lab technician. Each vial contained a tiny nugget of monkey feces that …

Evidence-Based Medicine

Colorado teen death blamed on hidden form of plague

DENVER (AP) — When a Colorado teen came down with a high fever and muscle aches, his family thought he had the flu. But he was dead within days and the rare cause was only revealed later.

Taylor Gaes had been infected with the plague, likely by fleas that put the bacteria directly into his blood …

Colorado

14 brands of bottled water recalled due to possible E. Coli

(CNN) —An E. Coli scare has prompted a Canada-based bottled water producer to recall some of its products.

Niagara Bottling LLC said the recall is purely out of an abundance of caution. There have been no signs of its product being contaminated or reports of consumers falling sick, it said.

The …

E. Coli

'We could wipe out polio by 2019,' says Bill Gates

Malaria and polio could be eradicated within 15 years, the Microsoft founder and philanthropist says

Philanthropist Bill Gates believes that the diseases malaria and polio could be eradicated within the next 15 years, with polio gone as soon as 2019.

Speaking at a Global Citizen event on combating …

Bill Gates

Workers clean up oil spill on California beaches by hand

GOLETA, Calif. (AP) — Along a stretch of beach heavily marred by a crude oil spill, workers in hard hats and white protective suits use wire brushes and putty knives to scrape the black liquid off cobblestones and cliff faces.

The painstaking task at Refugio State Beach marks a new front in the …

Oil Spills

Scientists Warn ‘Sixth Extinction’ May Be Underway

The paper used conservative premises and still arrived what scientists said was a concerning conclusion

A new paper warns that a major extinction event, one that would be the sixth in our planet’s history, may be underway. The authors of the paper, published in Science Advances, sought to determine …

Biodiversity

Ebola genetic code analysed to show evolution of worst ever outbreak

Scientists have analysed the genetic code of Ebola viruses from patients across west Africa and pieced together the evolution of the worst ever outbreak of the killer disease.

Experts from Public Health England at Porton Down in Britain, the World Health Organisation (WHO), and other leading labs, …

Evolution

Arlington officials report on fracking fluid blowout

ARLINGTON — Two months ago, 100 homes in Arlington had to be evacuated as fracking fluid spilled out of a drilling site onto the city streets.

Now we …

Natural Gas

NASA Satellites Show How Bad Earth’s Water Supply Is Getting

California's not the only one with water problems

We live on a planet that is mostly covered in water, but only a small portion of that liquid is drinkable. There are freshwater rivers and streams, but increasingly, we rely on aquifers, natural stores of freshwater found deep in the earth to quench …

Natural Resources