Getting the microbe story, straight from the mouth

A trio of researchers has mapped the living things that make the tongue, gums and palate home

How does the embryo make all its parts at just the right moments?

FIVE BIG QUESTIONS: If events weren’t properly timed, pandemonium would ensue. Researchers are ferreting out the internal clocks that control developmental sequence and scheduling.

The financial crisis flared in an era of invisible high risk. Has the system been reformed?

Economists tracking changes post-recession say safeguards should reduce the vast vulnerabilities seen 10 years ago. But putting out fires may be harder.

Demographers tackle Covid-19

What they learn could help steer the future of public health

Do patents invent innovation?

They're a common index of technological creativity, but research finds they can impede rather than encourage it

Is it time to bring data to managing?

Trendy office layouts. Performance reviews that crush morale. There’s plenty of evidence on how to get the best out of workers, but businesses often ignore it.

Taxes through the ages

Taxes, taxes — past, present and future

Here’s how the inevitable came to be, and where it may be headed

How the pandemic could globalize the economy even more — not less

Closed borders, trade conflicts and supply-chain problems raise the specter of nations turning inward and disconnecting from one another. But Princeton’s Harold James thinks Covid-19 may well push us all closer.

Will small businesses recover from Covid?

They play an outsize role in the economy, and in strengthening communities. Their prospects for surviving the pandemic may seem dim, but there are some encouraging signs, experts say — and emerging winners and losers.

Now is the time to prepare for the economic shocks of battling climate change

Shedding reliance on fossil fuels is key to making the leap from a carbon-intensive present to a greener future. Experts say that smart planning and transparent policymaking can ease the transition — and balance the worst financial risks.

Could Covid-19 usher in a new era of working from home?

Millions of people have been forced to work remotely — but experts say the practice won’t necessarily stick

The brain, the criminal and the courts

States of mind that the legal system cares about — memory, responsibility and mental maturity — have long been difficult to describe objectively, but neuroscientists are starting to detect patterns. Coming soon to a courtroom near you?

Why jobless payments serve the public good

Amid political debate over benefits during the pandemic, a researcher explains why unemployment insurance and other government measures are crucial for the economy and employees to survive troubled times

The story of families, wrested from big data

Records tell the story of the decline of the patriarchy, the rise and fall of marrying young, and pandemic fallout; digitizing the data could reveal even richer tales

Mining museums’ genomic treasures

The world’s natural history collections hold billions of biological specimens, many of which still contain DNA. Scientists exploring these genetic repositories are gaining new, historical perspectives on how animals evolve.

How do body parts grow to their right sizes?

FIVE BIG QUESTIONS: Some cells seem to know what to do. Others apparently take their cues from outside. But really, “We don’t get it.”

A “subprime” crisis in housing? Think again.

Economist Antoinette Schoar and colleagues found that middle-class homebuyers had more to do with 2008’s real estate crash than the less-wealthy consumers usually blamed for it.

Centuries of pondering — and squabbling about — trees

COMIC: Do forests warm or cool the Earth? What’s their effect on global climate change? A comic narrated by polymath Benjamin Franklin describes the evolution of thought on this issue and what we still don’t know.