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Sara Harrison

Contributor

Sara Harrison is a freelancer who covers science and business. She is a graduate of the UC Berkeley School of Journalism and Carleton College.

A New Study Helps Untangle the Role of Tau in Dementia

Understanding the protein’s role in the cell shows what's happening in neurodegenerative diseases before symptoms emerge.

How Do You Design a Better Hospital? Start With the Light

A new trend in patient-centered design focuses on making environments more comfortable and less scary.

These Lemurs Have Got Rhythm. Scientists Have Got Questions

Studying how and why rhythm evolved in these primates could help unravel the mysteries of human musicality.

Got Jet Lag? Consider Hacking Your Circadian Rhythm

Manipulating the master clock could help astronauts, pilots, shift workers, and even holiday travelers. The solution is simpler than you think.

All That Glitters Isn't Litter

A new plant-based material sparkles without plastics. That could be better for the environment—but it's also harder to make in industrial quantities. 

California Condors Are Capable of Asexual Reproduction

A new study shows that two captive birds had only maternal DNA and survived early development—a first for the critically endangered species.

The Malaria Vaccine Is a Big Deal, but Not a Silver Bullet

RTS,S proves that shots can work against parasites. But to eradicate this disease, scientists say we need more than just one tool. 

Pandemic Bird-Watching Created a Data Boom—and a Conundrum

Avid amateurs are generating a wealth of information on avian activity. But does that data reflect new trends in bird behavior, or in people’s?

Why Does Asthma Get Worse at Night?

The question has plagued scientists for centuries. A new study offers some answers.

An Experimental Birth Control Attacks Sperm Like a Virus

Monoclonal antibodies have been touted for their potential to fight off infections like Covid-19. Could they be used as contraceptives too?

A Mammoth Tusk Reveals a Woolly (and Unprecedented) Tale

Scientists used something called isotopic mapping to get a first look at how the creatures lived more than 17,000 years ago.

The Pandemic Changed Sleep Habits. Maybe That’s a Good Thing

A growing body of research shows that to optimize health and productivity, workers should adjust their workdays to their sleep schedules.

This Evolutionary Gift May Protect Coral From Climate Change

Coral in the Red Sea is unusually heat tolerant. The secret to its success may lie in the lucky confluence of geography and genetics.

Sharks Use the Earth’s Magnetic Field Like a Compass

Biologists have long believed that these animals rely on magnetic sensing to migrate across oceans. Someone finally figured out how to prove it.

35 Years Later, Studies Show a Silver Lining From Chernobyl

One new study found that radiation exposure didn't genetically harm future generations, while another offers insights into how radiation causes thyroid cancer.

What Octopus Dreams Tell Us About the Evolution of Sleep

Understanding how other animals dream could help us figure out why it’s so important to the human brain, and why it may have been preserved throughout history.

This AI Could Help Wipe Out Colon Cancer

Medtronic's GI Genius, recently cleared by the FDA, will help doctors identify precancerous polyps. 

Scientists Identify a Deadly Toxin That's Been Killing Birds

Thousands of eagles and other fowl have died from a mysterious condition that attacks their nervous systems. Now, after decades of investigation, we know why.

Even Mild Brain Injuries Raise the Risk of Dementia Years Later

A new study shows that concussions and other head traumas can have long-lasting effects on our health.

This Is What It's Like to Live Without Smell

Losing any sense can be devastating, even if you never appreciated it before it was gone.