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Sustainable building effort reaches new heights with wooden skyscrapers

Wood engineered for strength and safety offers architects an alternative to carbon-intensive steel and concrete

Are you my baby? The clever ways that brood parasites trick other birds

Cuckoos, cowbirds and other species outsource their parental duties. Scientists are uncovering new twists in this sneaky — and often treacherous — game of survival.

We are family: Tracing the evolution of animals

To understand the origins of multicelled life, researchers are studying a motley assortment of simpler animal relatives. The commonalities they’re unearthing offer a trove of clues about our mutual past.

Hummingbirds thrive on an extreme lifestyle. Here’s how.

Soldiering through nightly suspended animation, a (nearly) all-sugar diet, backwards flight and long migrations, the birds’ tiny physiques prove mighty

Your cells are dying. All the time.

Some go gently into the night. Others die less prettily in freak accidents or deadly invasions, or after a showy display.

What if a virus could reverse antibiotic resistance?

In promising experiments, phage therapy forces bacteria into a no-win dilemma that lowers their defenses against drugs they’d evolved to withstand

What’s that smell — and how’d you know?

It’s clear that genes, receptors and neurons all play a role in detecting odors. But much of how we make sense of what we sniff remains mysterious. A neuroscientist explains.

These proteins have been secretly managing your cells

Scientists have long known that histones spool DNA and help regulate genes. They may be doing a lot more.

The dirt on biocrusts: Why scientists are working to save Earth’s living skin

Think twice before stepping on that crunchy top layer of soil. It may be a vital ecosystem — one that you can help protect.

The tussle over cigarette warning labels, and the hazy future of vaping

Regulatory hurdles, industry objections and legal fights have gone on for decades over traditional tobacco. What’s in store for the next generation of smoking?

Multimedia

Divided we stand: The rise of political animosity

Scientists peered into the partisan abyss. Here’s what they found.

The phageome: A hidden kingdom within your gut

Human innards are teeming with viruses that infect bacteria. What are they up to?

What a bioluminescent petunia had to teach me

I bought a glowing plant. It led me down a rabbit hole of radiant mushrooms, 19th century experiments and a modern rivalry between scientists in Russia and the Americas.

Saturn’s moon Mimas may hide a surprisingly young ocean

The existence of another watery world in the outer solar system may offer clues to how such seas form — and hope for another spot to search for life

New forms of steel for stronger, lighter cars

Automakers are tweaking production processes to create a slew of new steels with just the right properties, allowing them to build cars that are both safer and more fuel-efficient

Are you a workaholic? Here’s how to spot the signs

In a major shift, psychologists now view an out-of-control compulsion to work as an addiction with its own set of risk factors and consequences

Of genes, chromosomes and oratorios

Jenny Graves has spent her life mapping genes and comparing genomes. Now she’s created a musical opus about evolution of life on this planet — bringing the same drive and experimentalism she brought to the study of marsupial chromosomes.

It’s not just us: Other animals change their social habits in old age

In patterns that may sound familiar, long-term studies reveal what elderly deer, sheep and macaques are up to in their twilight years

Animals use physics? Let us count the ways

Cats twist and snakes slide, exploiting and negotiating physical laws. Scientists are figuring out how.

To help with climate change, carbon capture will have to evolve

The technologies are a useful tool to reduce CO2 levels but have yet to move us away from fossil fuels

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