A newly developed fuel-cell concept will allow biodiesel plants to eliminate the creation of hazardous wastes while removing their dependence on fossil fuel from their production process.
Scientists have discovered that the earliest living organisms on Earth were capable of making a mineral that may be found on Mars. The clay-mineral stevensite has been used since ancient times, but scientists had believed deposits could only be formed in harsh conditions. Researchers found living microbes create an environment that allows stevensite to form, raising new questions about the stevensite found on Mars.
A new study uses genetic information extracted from the remains of an adolescent girl to help resolve the longstanding debate about the origins of the first people to inhabit the Americas.
A new study of preschools and day care centers finds that flame retardants are prevalent indoors, potentially exposing young children to chemicals known to be hazardous.
Teenagers who have suffered a traumatic brain injury such as a concussion are at “significantly greater odds” of attempting suicide, being bullied and engaging in a variety of high risk behaviors, a new study has found.
Cholesterol levels fluctuate based on the time of year with more unfavorable lipid profiles seen in the colder months, a trend that may be driven by related behavior changes, according to new research.
Scientists are reporting that one compound from “third-hand smoke,” which forms when second-hand smoke reacts with indoor air, damages DNA and sticks to it in a way that could potentially cause cancer.
In the largest, most comprehensive, nationwide study to examine the prevalence of allergies from early childhood to old age, scientists from the National Institutes of Health report that allergy prevalence is the same across different regions of the United States, except in children 5 years and younger.
Nuts are in the news: a recent study has offered evidence for a big reason our bodies are so nuts for nuts. They are apparently almost all our big brains needed to survive— thus almost all we ate— from 1.4 to 2.4 million years ago.
Exposing skin to sunlight may help to reduce blood pressure by altering levels of the small messenger molecule nitric oxide (NO) in the skin and blood, thus cutting the risk of heart attack and stroke, a new study says.
An international team of researchers has sequenced the genome of the elephant shark and found new insights into the shark's bone formation and immunity.
To safely use bacteria in agriculture to help fertilize crops, it is vital to understand the difference between harmful and healthy strains. But can the microbial good and evil be told apart? Yes, life scientists and an international team of researchers report.
The controversial idea that vertebrate evolution can happen rapidly, in the merest handful of generations, has been given a boost. Harvard University evolutionary geneticist Nicolas Rohner and colleagues recently reported finding the mechanism by which some cavefish are born eyeless after the species moves from surface waters to dark caves.
An international research team has completed the first high-quality genome sequence of a Neanderthal, deepening knowledge about the genetic connections and population histories of ancient and modern humans.
A controversial oil and natural gas drilling technique called hydraulic fracturing, or fracking, uses many chemicals that can disrupt the body’s hormones, according to new research.
Thousands of years ago, a population of Astyanax mexicanus fish in northeastern Mexico swam or was swept from its hospitable river home into harsh underwater caves and became trapped. Facing a dramatically different environment of near total darkness and hardly any food, the fish had to adapt— fast.
While posttraumatic stress is expected after natural disasters, few survivors anticipate the positive psychological changes that they may experience – and now new research has revealed that genes may play a role.
The switches in our epigenome help alter the way our cells act and are impacted by environmental factors including diet, exercise and stress. Research at the Buck Institute reveals that aging also effects the epigenome in human skeletal muscle.
What may be the oldest complete fossil on Earth paints a smelly but colorful picture of our microbial ancestors from nearly 3.5 billion years ago. The fossil is the remains of what once was a purple-and-green slimy, smelly mat of single cell microbes that worked, lived and even communicated together in what is an awful lot like a prehistoric microscopic society.
The first trickle of fuels made from agricultural waste is finally winding its way into the nation's energy supply, after years of broken promises and hype promoting a next-generation fuel source cleaner than oil.
A new study has shown that high concentrations of tungsten– as measured in urine samples– is strongly linked with an increase in the occurrence of stroke, roughly equal to a doubling of the odds of experiencing the condition.
What does it mean to be human? According to scientists the key lies in the billions of lines of genetic code that comprise the human genome. The problem has been deciphering that code. But now, researchers have discovered how the activation of specific stretches of DNA control the development of uniquely human characteristics.
It might seem obvious that humans are elegant and sophisticated beings in comparison to lowly bacteria. But when it comes to genes, a scientist wants to turn conventional wisdom about human and bacterial evolution on its head.
For animal species that cannot be distinguished using their external characteristics, genetic techniques such as DNA barcoding can help to identify cryptic species. Now, an international team of researchers has demonstrated how a bacterial infection can mimic cryptic speciation in butterflies.
Researchers have solved a big piece of the puzzle of how and why multicellular organisms evolved the trait of using single cells to reproduce by applying experimental evolution to transform a single-celled algae into a multicellular one that reproduces by dispersing single cells.