The Dragon tree (left) and Dragon tree fruit (right)

Plant of the Month: The Dragon Tree

Dragon's blood is all the rage now, but where does the scarlet resin come from?
Palm trees in fog, Florida

Will the Saharan Dust Cloud Damage Our Lungs?

The airborne particles carry microbes and fungi, and can react with human lung tissue.
Grapes on a vine

The Great Grape Graft That Saved the Wine Industry

Grape varieties from North America seemed harmless to French winemakers. But destructive bugs were imported with the plants.
The ship María Pita departing from Coruña in 1803, engraved by Francisco Pérez

How Children Took the Smallpox Vaccine around the World

In 1803, nearly two dozen orphan boys endured long voyages and physical discomfort to transport the smallpox vaccine to Spain's colonies.
Man holding Dirty used disposable medical mask on beach by sea. Pollution due coronavirus pandemic

What Happens to All That Used PPE?

Gloves, masks, and other personal protective equipment have kept us safe during the pandemic. Now they're washing up on beaches around the world.
A man nursing a sick person, circa 1850

Blaming People for Getting Sick Has a Long History

Four major theories of disease transmission dominated scientific discourse in the nineteenth century. As one scholar writes, all were political.
Several hundred doctors, nurses and medical professionals come together to protest against police brutality and the death of George Floyd on June 5, 2020 in St Louis, Missouri.

Police Violence Is a Public Health Issue

Research makes the case that people who fear police violence are less likely to seek out health care.
A chicken surrounded by chicks

So You Want to Buy a Pet Chicken?

Looking for a sense of comfort and security by buying a chicken? You'll get more than you bargained for.
Alondra Nelson

Alondra Nelson: Leave More Genius Work Behind

How do those who have been the objects of scientific study and medical experimentation become the agents or the producers of scientific knowledge?
A massive American Elm tree sits backlit by the rising sun in Overlook Park in northern Portland, Oregon.

Why Learning the Names of Trees Is Good for You

Getting to know trees can lead to new ways of looking at the world.