From Mundus Subterraneous by Athanasius Kircher, 1641

Where Does Water Come From?

And what does the early modern search for the answer to this question tell us about the “scientific method” we colloquially accept today?
Watercolor painting of the earth by Martin Eklund

Planetary Health: Foundations and Key Concepts

The groundwork for the field of planetary health was laid by a range of disciplines and movements, including medicine, ecology, health, and feminism.
Marshall Islands stick chart, Meddo type

Marshall Islands Wave Charts

Charts constructed of carefully bound sticks served as memory aids, allowing sailors of the Marshall Islands to navigate between the islands by feel.
A lichen in a paper coffee cup

Lichen Latte, Anyone?

Irrigation and antibiotics might be appropriate treatments for an animal bite—but maybe you’d prefer to sip a steaming lichen-and-pepper latte instead.
Watercolor illustration of Plumeria Acuminata commissioned by Scottish doctor and botanist William Roxburgh, late 18th century or early 19th century.

Plant of the Month: Frangipani

An ornamental plant whose white flowers hang over graveyards and temples in Southeast Asia presents complicated questions on national belonging and religious identity.
An illustration of Morning Glory flowers

Aphrodisiacs of the Aztec and Inca

Aztec and Inca societies used a huge number of aphrodisiacs, from peanuts to hallucinogenic mushrooms to insect larvae.
A man looks through his medicine cabinet in the bathroom, circa 1955.

The Long Life of the Nacirema

An article that turned an exoticizing anthropological lens on US citizens in 1956 began as an academic in-joke but turned into an indictment of the discipline.
Communication network concept of a digital globe

¡AI, Caramba!: Artificial Intelligence and Policymaking

As the use of artificial intelligence expands at the global level, many states are closer to implementing national AI policies. But are they close enough?
Salamander on finger.

The Next (Salamander) Epidemic

Everybody loves salamanders, especially the exotic pet industry. But importing these amphibians helps spread diseases like Bsal and Bd to native populations.
From The Tertiary insects of North America, 1890

Historical Bugs: Archaeoentomology

The remains of ancient insects reveal new information about Paleo-Eskimo life and the history of the Norse in Greenland, Iceland, and the Faroe Islands.