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Sounding out the brain

Ultrasound isn’t just for images. Sonogenetics and other promising technologies let researchers use focused sound waves to control genes and entire cells deep in the tissues of living animals, without surgery.

Why forgetting may make your mind more efficient

Evidence builds for ways that the brain actively erases memories

At San Diego’s Frozen Zoo, a chance for animal immortality

The cryobank is a rich source of genetic knowledge of hundreds of creatures. It may one day be used to bring endangered species back from the brink and deepen the gene pool of wild populations.

What we talk about when we talk about food

From identity to national politics, gastronomical conversations can reflect who we are, and who we are not

When the brain’s waste disposal system fails

Marco Sardiello explains how problems with the cell’s lysosomes lead to disease

Bypassing paralysis

By decoding brain activity with electrical implants, computers can help disabled people move a robotic arm — or their own

How a second language can boost the brain

Being bilingual benefits children as they learn to speak — and adults as they age

A salamander’s dangerous liaisons

The giant genomes of these struggling amphibians tell a story of outsider invasions, assault by disease and cross-species sex. A geneticist explains.

Fighting crime with statistics

Taking advantage of “natural experiments,” researchers analyze data to look at what works

If mammoth tusks could talk

Five new things we’re learning about the extinct animals and their ancient kin

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.

A run on the bank, 21st century style

Timeline: Major moments of the 2008 global financial crisis

She sees dead bodies

An environmental historian looks at how Americans treat corpses and what it means

Unbound and out: Boosted by black holes, stars speed off, leaving clues behind

Space oddities may help reveal dark matter and other secrets in the Milky Way. Astronomer Warren Brown explains.

Betting on bats for genetic treasures

Bat genomes are full of clever tricks that are treats for biology and medical science — it’s why scientists want to sequence them all

Eyes in the sky: 5 ways drones will change agriculture

From spotting leaks to patrolling for pathogens, flying robots are taking up chores on the farm.

Lost world: An ancient ninth planet that went missing

Clues hidden in today’s orbits hint at the violent origins of the solar system — and a rogue giant kicked out long ago.

Finding the fat: The US Farm Bill and health

America has grown obese on processed, sugary and deceptively cheap foods. Some blame policies enshrined in an unwieldy, bloated beast of legislation.