November 14, 2015
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New methods, coupled with new attitudes, are revising ideas about Earth's boring billion.
The Mesoproterozoic era, known as the boring billion, had very low oxygen, but it set the stage for the evolution of animals.
Instead of just responding to the energy needs of neurons, the blood can have a direct and powerful influence on the brain.
Claims about the cancer drug sunitinib are overblown because of poorly designed studies and negative results that were never published, a new analysis suggests.
After a history of controversy, preexposure prophylaxis has been demonstrated to work for HIV prevention.
Tough structures that swaddle nerve cells may store long-term memories.
Hints of Huntington’s disease show up in the brain long before symptoms do.
Hunters responsible for woolly mammoths’ extinction, suggests a chemical analysis of juveniles’ tusks.
The reptilelike Dimetrodon dined mainly on amphibians and sharks, not big herbivores as scientists once believed.
Hunter-gatherer communities in Africa and South America have similar sleeping patterns as people living in postindustrial societies, researchers find.
Cave finds indicate modern humans reached southern China long before entering Europe.
CRISPR/Cas9 disables multiple viruses at one time
Although scientists have largely viewed skin as an unimportant portal to blood for toxic air pollutants, new human data show that skin can surpass lungs as a route of entry.
Ancient man’s DNA helps reveal extent of Eurasian farmers’ back-to-Africa migration some 3,000 years ago.
A 48-million-year-old fossil of an early horse and fetus is the oldest and best-preserved specimen of its kind.
Representatives from the first generation of stars might be hiding in our cosmic backyard, masked by interstellar pollution.
Sugar and alcohol are just two of the ingredients that go into making a comet.
Rocky planets are disintegrating around a white dwarf, the core of a dead star.
Brighter female glowworms attract more mates and lay more eggs than their dimmer peers.
Young Americans are more genetically diverse than previous generations, a new DNA analysis reveals.
Certain microbial mixes are associated with particular DNA mutations in colon cancer, a new study suggests.
Silicon transistors have been modified and patched together to form logic gates that could perform calculations in future quantum computers.
DNA marks distinguished homosexual men from heterosexual men with in a small twin study.
Earliest sea scorpion discovered in impact crater in Iowa.
Hunchbacked conchs are among the most vigorous of snailkind’s few jumpers.
A pioneering study to transplant a dog’s brain led to later work on a monkey, but ethical considerations and technical know-how have prevented further work.
A host of agricultural spirits are immortalized on several craters and mountains on the dwarf planet Ceres.
An extra dose of cancer-fighting genes may be the secret to elephants’ long life spans.
Reviews & Previews
Missteps are a must in science, biologist argues in new book.
It was a long, strange trip from the first Eurasian farmers to the modern world.
In "On the Wing," a biomechanicist reviews how animals took to the air.
Letters to the Editor
Letters and comments from readers on quantum spookiness, Earth's magnetic field, and more.
A network diagram of animal species shows that many microbes living in humans also make themselves at home in dogs, pigs and cattle.