Bryant McAllister

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References

This special feature is brought to you by the Science/AAAS Custom Publishing Office<p>In the 35 years since its invention, polymerase chain reaction …

Spinach Quiche Recipe

"Let me start by saying that I devised this recipe myself, and I just sort of add 'this and that.' This recipe is VERY forgiving, so you can add or …

Avengers: Infinity War’s superheroes, explained by an evolutionary biologist

How Avengers: Infinity War poses questions about evolution, genetics, and artificial intelligence.<p>Shane Campbell-Staton was deep into his grad school dissertation on the evolution of the green anole lizard when he started having intense dreams about the scientific origins of various superheroes.<p>“I …

Fossil Tracks May Record Ancient Humans Hunting Giant Sloths

New Mexico's White Sands National Monument is a desolate place; sparse vegetation pokes up throughout its salt flats and white gypsum dunes. But the …

Redefining the origin of the cellular powerhouse

Researchers proposes a new evolutionary origin for mitochondria -- also known as the 'powerhouses of the cell.' Mitochondria are energy-converting …

How We've Tackled the Evolving Science of DNA

“No article we have ever published has been more difficult” than our first feature about the molecule of life, which appeared 42 years ago.<p>On April 25, 1953, the journal <i>Nature</i> published a picture that sparked a revolution: the first drawing of the structure of the DNA molecule. That landmark …

Genetics

Helix no more. Researchers find a new DNA shape

A DNA “knot” breaks several rules thought hard and fast. Now the race is on to understand it. Elizabeth Finkel reports.

Why archaeologists are arguing about sweet potatoes

It’s a hot (potato) mess.<p>At some point, sweet potatoes crossed the Pacific. This much we know. As for the rest—How? When? Why?—we’re just not sure.<p>Or, to be more clear, some people are sure they’re sure, and others disagree.<p>Sweet potatoes have been at the center of a massive archaeological debate …

Anthropology

How Many Genes Do Cells Need? Maybe Almost All of Them

An ambitious study in yeast shows that the health of cells depends on the highly intertwined effects of many genes, few of which can be deleted …

Rare Mutation Among Bajau People Lets Them Stay Underwater Longer

The Bajau people of Malaysia and the Philippines are renowned for their free-diving abilities, often working eight-hour shifts in search of fish and …

How Genetics Is Changing Our Understanding of ‘Race’

In 1942, the anthropologist Ashley Montagu published “Man’s Most Dangerous Myth: The Fallacy of Race<i>,</i>” an influential book that argued that race is a social concept with no genetic basis. A classic example often cited is the inconsistent definition of “black.” In the United States, historically, a …

Evolution

Surprising discovery: Sweet tooth gene connected with less body fat

Last year researchers discovered that a particular craving for sweet things may be determined by a genetic variation. Now the researchers have …

When a Bigger Penis Means Swifter Extinction

For one group of tiny crustaceans, the species whose males invest most heavily in sex disappear ten times faster.<p>The oldest penis ever found is 425 million years old, and belongs to an animal whose scientific name—<i>Colymbosathon ecplecticos</i>—means “astounding swimmer with a large penis.” Large is …

Biology

Humans are still evolving—and we can watch it happen

Many people think evolution requires thousands or millions of years, but biologists know it can happen fast. Now, thanks to the genomic revolution, …

The Code is a three-part video series investigating the roots of today’s most promising genetic technologies

Those who do not remember the past are doomed to repeat it. And those who do not remember the sometimes irrational exuberance around past advances in …

Found: more than 500 genes that are linked to intelligence

More than 500 genes associated with intelligence have been identified in the largest study of its kind.<p>Researchers used data from the UK Biobank, …

Despite Court Ruling, There's No Certain Science Linking Coffee to Cancer

Attention, coffee drinkers: A judge in California has ruled that coffee companies in the Golden State must label each cup of joe with a cancer …

Biologists Trace Genetic Roots Of Evolution, One Cell At A Time

Genetic mutations are the driving force of evolution, and now scientists have managed to study the effect of mutations in exquisite detail by watching what happens as they pop up in single cells.<p>Only about one percent of mutations were bad enough to kill off the cell, according to a report …

Controversial study challenges scientific consensus that adult brains make new neurons

Neuroscientists at the University of California, San Francisco, had a hunch their findings would be controversial, as tends to happen when you …

University of California

Researchers Used This Genealogy Site to Build a 13 Million-Person Family Tree

In the last 20 years, genealogy websites have attracted more than 15 million customers by promising insights into your past. Maybe you’ll uncover a …

Genealogy

Consider the Fruit Fly

Modern genetics would not be possible without the humble fruit fly.<p>In college, I worked briefly in a fruit-fly lab, where I spent most of my time just keeping different fly strains alive. It was not difficult—as anyone with a fruit-fly infestation can tell you—but the repetitive work imprinted …

Biology

How Cells Pack Tangled DNA Into Neat Chromosomes

A human cell carries in its nucleus two meters of spiraling DNA, split up among the 46 slender, double-helical molecules that are its chromosomes. …

Genetics

Sweet tooth? Kids may choose snacks based on genetics: study

Whether a pre-schooler has a sweet tooth, is partial to snacks rich in fat, or has an aversion to bitter vegetables like broccoli could be linked to …

Toenail Fungus's Nonexistent Sex Life Is More Interesting Than You Think

Toenail fungus is not sexy, and the microbes that cause the infection appear to agree: A new study finds that these fungi have given up on sex — …

Biology

Here’s how cells rapidly stuff two meters of DNA into microscopic capsules

Frequent fliers, take note. Scientists have figured out how cells quickly pack long chromosomes into compact, organized bundles — a key step before …

Chia Seed Pudding

Recipe courtesy of<p>From:<p>Total:40 minPrep:40 min<p>Yield:4 servings<p>Level:Easy<p>Nutritional AnalysisPer ServingCalories201 calorieTotal Fat8 gramsSaturated …

The Life Changing Crackers

Lentil and Sweet Potato Stew with Turmeric and Kale

<b>Ingredients</b><p>1 cup dry lentils<br>• 4 cups chicken bone broth, vegetable stock or water<br>• 2 cups peeled and chopped sweet potato<br>• 1/2 cup chopped carrot<br>• 1 whole small yellow chopped onion<br>• 1/2 cup chopped celery<br>• 2 tablespoons olive oil, plus more for garnish<br>• 1 teaspoon dried turmeric<br>• 1 teaspoon ground pepper<br>• 3 garlic …

Hot and Sour Soup

<i>Learn how to make restaurant-style Hot and Sour Soup with this quick and easy recipe. It’s easy to adapt to your personal taste preferences, and so</i> …