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Going gentle

A sociologist explains how to get the most out of the final months of life

Total recall: A brilliant memory helps chickadees survive

In winter, the birds must remember where they’ve hidden tens of thousands of seeds. Biologist Vladimir Pravosudov explains what this can teach us about how the brain evolves.

On whose green Earth?

Are we supposed to take care of the planet or should it take care of us? Willis Jenkins explains how religion shapes the conflicting views over climate change and other environmental issues.

Getting “exhausted” T cells back into action against cancer

When a malignancy or chronic infection sets in, a kind of immune combat fatigue can follow. Finding ways to recharge immune cells can restore their ability to fight deadly diseases, says immunologist John Wherry.

War and drugs: Together since forever

Alcohol-drenched medieval battlefields. Opium-laced imperialism. Modern-day narco-terrorism. There’s a lot of history between armed conflict and psychoactive substances.

Archaeology of the 99%

The vast majority of people in antiquity were too poor to leave many artifacts behind. But archaeologists have learned how to look beyond the temples and palaces.

If it pleases the Prosecution

The immense powers of prosecutors throughout the US mean that the scales are tipped against defendants — and justice itself, says a legal expert

As climate changes, so does life in the planet’s soils

To understand what might be lost, ecologist Janet K. Jansson taps molecular methods to explore Earth’s underground microbes, from the permafrost to the grasslands

Always look on the bright side of life

How a positive outlook may buffer us from stress and ward off health problems 

Will the food of the future be genetically engineered or organic? How about both?

Feeding the planet — now and tomorrow — is no small task. Plant biologist Pamela Ronald says sustainability means using every tool in the toolbox.

A blizzard of “sustainability” labels

Earth-friendly certifications and standards abound for products like coffee, chocolate and palm oil. But do the programs work?

Kids in the middle

Recognizing the important role of children as cultural translators

Watching Alzheimer’s in action

A look inside the brains of engineered mice suggests therapies might need to target two key proteins — tau and amyloid-beta — at the same time

The story of Snowball Earth

Ancient rocks suggest that ice entirely covered our planet on at least two occasions. This theory may help explain the rise of complex life that followed.

Grim relics

Archaeology of the Nazi era is about digging for truth through science. Reinhard Bernbeck discusses the origins and ethics of this approach.

Looking for economic prosperity without growth

The only way for humanity to solve its environmental problems may be to abandon our quest for continual economic expansion. It’s time to study what a future of degrowth might look like, some researchers say.

The inheritance enigma

Retirement is a time for spending, not saving. And yet many people hold on to their wealth. Understanding why, and where that money ends up, is of increasing importance as the US population ages. 

A deliberate fix for democracy

Take a group of random citizens, give them the facts and let thoughtful discussion unfold