An encyclopedia of anthropology

Search this citation-heavy database of nutrition and supplement research

Explore a reference site that aggregates and summarizes peer-reviewed studies on hundreds of supplements and dietary interventions. It is ad-free and funded by subscriptions, making it a health resource without a financial stake in what you buy.

The National Institute on Drug Abuse's resource library

The National Institute on Drug Abuse website is an in-depth and highly prolific resource on addiction science. Explore the vast scope of this website to access comprehensive guides, data visualizations, and educational materials on all facets of addiction and its treatment.

Flip through centuries-old artifacts in this 3D library

Archaeology is hands-on work, giving researchers the ability to analyze artifacts from as many sides as possible to find marks left by those that came before us. While looking at pictures of artifacts gives you some insight, you're limited to...

View a directory of more than 300 dinosaurs

This resource details each dinosaur's taxonomy, type, diet, and habitat, from Aardonyx to Zuniceratops. More well-researched dinosaurs include information on when they were discovered alongside their size, behaviors, and other noteworthy findings.

What can we learn from archaeology?

By revealing buried civilizations and dating objects of antiquity, archaeology turns hard data into human stories. But what's the use of knowing these stories? Find out for yourself in this interactive resource that can take you to and through historic sites around the globe.

Human origins 101

Learn about the over 20 early human species that belong in our family tree and how the natural selection of certain physical and behavioral traits defined what it means to be human.

Trans-Atlantic and intra-American slavery: a visual database

This interactive database provides insight into the trading of enslaved Africans across the Atlantic. This database offers maps, articles, timelapses, videos of 3D slave ship models, and searchable databases on enslavers and the enslaved. According...

An immersive curation of the world's rock art

A living archive of humanity’s ancient art and symbols, our shared history that is embedded as rock art and cave art in the landscape

Explore over 46,000 pages of Charles Darwin's manuscripts

The American Museum of Natural History hosts almost 35,000 digitized folios related to evolution within the fields of botany and zoology from Darwin's Beagle voyage. High-resolution color images, geological findings, and annotated books from Darwin's personal library are also viewable.

Searching for the history of cancer in ancient human bones

Nestled under archaeology lies bioarchaeology, which involves the study of bones, human or animal. This subfield recently birthed another field of study: paleo-oncology. Paleo-oncology looks for cancer and related biomarkers in bioarchaeological remains. This TED article explains how this nascent multidisciplinary field challenges the idea that cancer is modern.

Explore a comprehensive encyclopedia of all known bird species and families.

Learn about the more than 100 known autoimmune diseases

Explore this resource with summaries and related resources for the dozens of autoimmune diseases defined in the medical literature. Many of these disease write-ups also have interviews with a patient with the disorder—offering a personal take about challenges, advice, and lifestyle effects.

Here's how early humans lived

Explore the evidence of early human behavior—from ancient footprints to stone tools and the earliest symbols and art – along with similarities and differences in the behavior of other primate species.

Human ancestors: a guide

Modern humans are not the only creatures classified as part of the Homo genus. This article examines the eight other humans that fall under the Homo umbrella.

Addiction is defined as chronic compulsive drug use despite adverse consequences

This resource from the National Institute on Drug Abuse provides a comprehensive look at addiction as a complex brain disorder. It explores why people initially take addictive substances and how continued use alters the brain’s reward system.

Explore an archive of scholarly writing about Homer and 'The Odyssey,' with archaeologists, historians, and literary critics unpacking the author and his masterwork.

The science of addiction treatment

A helpful resource from the National Institute on Drug Abuse (part of the NIH). This article examines addiction treatment and recovery through the science behind several accepted methods. The guide draws helpful comparisons with other chronic disease treatments. In particular, it discusses the overlap between medications and therapeutic treatments, and the understanding that relapse doesn’t indicate treatment failure—only a need for continued or modified care.

The archaeology of human sacrifice

Human sacrifice appears in cultures around the globe. But how do we know that to be true? Scientists can tell the difference between ritual sacrifice and mass graves better explained by war and political instability. Learn how in this article about...

The Whole Earth Catalog offered readers tools for healthy eating

The publication promised hippies "access to tools"—listings for "high quality or low cost" books, devices, and instructions for alternative living, including cultivating natural and organic foods. This archive comprises high-definition scans of nearly all materials published between 1968 and 2002.

What's the point of archaeology?

Archaeology as a science may seem focused on tangible goods, with its emphasis on material evidence of peoples long passed. But its findings influence how humans interact today (and possibly tomorrow). From understanding and improving on concrete to...

Recreating ancient faces: where art meets archaeology

Artistic renderings and reconstructions of ancient people are one way to bring the past to life, providing viewers with insights into and empathy for those who came before. This article details how modern artists and archaeologists work together to...

Explore these collections of early human fossils

The human fossil record is filled with massive gaps, leaving archaeologists tiny samples to try and glean the history of our species. At this site, you can browse through the human fossil collection, including 3D rotatable scans of hundreds of fossils from different species of early humans.

Bad Ancient: a site to fact-check claims about the ancient world

Peruse popular questions about ancient Rome, Egypt, Greece, and more, from whether Greek boxers were ripped or to what extent Alexander the Great conquered the world.

The lack of diversity in DNA databases limits their applications

European ancestry dominates genetic research, hindering the usage of genetic databases for precision medicine for other groups, including African Americans, who face higher health risks due to genetic variants. Many Indigenous communities have also resisted genetic research due to past exploitation. (Some readers may experience a paywall.)

Browse and explore dozens of major psychology theories

There are a ton of different psych theories—so here's a breakdown of some of the major ones according to the general psychological focus.

A free archive of firsthand historical documents from explorers of America

Maintained by the Wisconsin Historical Society, the American Journeys collection contains more than 18,000 pages of primary source documents—journals, letters, maps, and accounts written between roughly 1000 CE and the early 1800s. These include eyewitness records of the Norse arrival in North America, Spanish conquistador expeditions, and the Lewis and Clark journey. Browse this list of highlights where pages from the original texts are specified (clicking a link opens a PDF).

Learn about the US opioid crisis in this free course

Where did the US opioid crisis come from, and how did it spread? Learn this and more in this free, online Harvard University course. Learn about the disease model of addiction treatment and management, and get up-to-date with public health and law enforcement's current harm reduction practices. This free resource gives users a greater understanding of opioid addiction and the epidemic still haunting the US.

Wikipedia's sister sites include directories of travel guides, species, and media

Like Wikipedia, volunteers around the world contribute to Wikivoyage, Wikispecies, and Wikimedia Commons to create freely accessible repositories of knowledge. Other projects include Wikibooks, a collection of e-books and annotated texts; Wikisource, which features source documents and historical texts; and Wiktionary, a dictionary covering over 170 languages.

Explore the human family tree

This interactive human family tree shows the various species that constitute the human evolutionary family. Click on each species or group image to learn more.

The archaeological discovery that shifted scientists' understanding of human evolution

In 2003, archaeologists in Indonesia uncovered the remains of a 3-foot-tall skeleton that appeared to belong to a new type of human. Read this article to learn how the discovery of this 50,000-year-old skeleton upended the idea that human evolution...

How did archaeology come to be?

Archaeology, also spelled archeology, is the scientific study of the material remains of past human life and activities. So when did it become an official body of science? Britannica answers this question and more in this article on the history of...

The anthropological origins of modern race science

The year 1961 saw the launch of The Mankind Quarterly, a new scientific journal of anthropology that hid its political propaganda behind a veneer of academia, expecting readers to assume whatever lay in its pages was scientifically proven. This in-depth article details how this journal pushed race science in the hopes of blocking racial integration in the US and preventing the immigration of those outside of Western Europe.

See Harvard’s early history through Indigenous voices

Founded in 1636, Harvard University grew alongside English colonization in Wampanoag lands. In this online exhibit, the Peabody Museum of Archaeology and Ethnology highlights Indigenous voices, interpreting objects such as eel traps and grass baskets.

A comprehensive guide to the gods

History is filled with the power and mystique of gods, from the epicly bearded Greek boss Zeus to Hoori, the Japanese god of hunting. Check out this database of over 4,000 of the world's deities, from Norse mythology to the gods of Polynesia, and click through for explainers and facts. Peruse specific pantheons (a single culture's collection of gods) or look for the god of a specific attribute, place, or emotion. Dive in here.

The Paranthropus genus, our mysterious extinct cousins

In the last century, skull and jaw fragments have been discovered in East Africa suggesting an ancient hominin species lived, evolved, and died alongside humanity's ancestors. With large, broad skulls and strong jaws, the Paranthropus genus—which includes several related species—is an absorbing case of the effects of niche partitioning, where species coexist by adapting differently to the environment. Paranthropus died out and human ancestors endured. Find out why here.

A timeline of human fossil discoveries

A key part of writing a coherent story about our origins is finding and identifying the remains of our ancestors and understanding their significance. Scientists will not always agree on identifications and opinions will change as new find are made and new ways of studying them are developed.

The lifestyles of early humans

For 2.5 million years, humans lived on Earth without leaving a written record of their lives—but they left behind other kinds of remains and artifacts.

What is Archaeology?

If you are up-to-date on your Jurassic Park lore, then you likely already know the answer to this question. But for those of us who didn't delve into the world in dinosaurs, it's easy to assume that professionals who study old stuff likely study the remains of what came before us, right? Find out in this article by the Society for American Archaeology.

The Internet Archive is a nonprofit digital library of the Web

Founded in 1996, the Archive promotes open access and the digital preservation of online information and, as of 2026, contains more than 200 petabytes of content, including over one trillion web pages, 56 million books and texts, 13 million audio recordings, 1.3 million software programs, and other digital content.

Did a Smithsonian anthropologist steal people's brains?

This comic examines "racial brain collection" of Ales Hrdlicka, the Smithsonian's head of physical anthropology during the early 1900s. Hrdlicka was a white supremacist who sought physical evidence for his theories on anatomical differences between...

Human anatomy provides evidence for evolution

Throughout history, scientists have used anatomy to support the Theory of Evolution in three main ways. Homologous structures, or similar physical features in organisms that serve different functions, can help scientists understand common ancestors....

Psychedelic compounds: a visual library

However psychedelic experiences manifest, they all begin with the presence of psychoactive compounds. Learn about their various chemical compositions in this structural library of psychedelic compounds. Clicking on an entry will take readers to a new page where they can learn about the chemistry and pharmacology of each compound, as well as the drug's possible applications.

'The opposite of addiction isn't sobriety—it's human connection'

This thought-provoking TED talk from journalist Johann Hari challenges conventional wisdom about addiction, with a special focus on his global research investigating its root causes. Through personal stories and scientific evidence, Hari debunks some of the most common myths around addiction.

An overview of the anthropocene: the scale of human influence on Earth

Human activity has fundamentally changed our planet. We live on every continent and have directly affected at least 83% of the planet’s viable land surface.

Explore an interactive timeline and map of dinosaurs across the globe

This tool maps dinosaur habitats based on fossil sites around the world. It includes short articles and additional information—including size, diet, and weight—about each dinosaur. A timeline and data table also allow users to compare dinosaur emergence and extinction dates.

Research suggests articles on Wikipedia are about as reliable as 'accurate' sources

Studies from Nature, The Guardian, the Journal of Clinical Oncology, and the Canadian Library Association, among others, did not identify significant errors, particularly in articles related to academic topics. The site is still considered an exploratory, tertiary source subject to systemic biases from its human editors, especially within controversial topics.

LonelyWiki compiles obscure Wikipedia articles with fewer than 2,000 annual readers

LonelyWiki calls itself a museum of forgotten knowledge. A "lonely article" features real prose, at least 500 characters, no stub placeholders, and under 2,000 annual views. Each one represents a person who decided something was worth documenting without editorial commission or trending news.

'Susan's Brain': what happens to the brain during addiction

This engaging animation from Harvard Online breaks down the neuroscience of addiction through the story of “Susan’s brain,” demonstrating how addictive substances hijack normal reward pathways. Through clear visual metaphors and approachable narration, it explains complex brain chemistry in understandable terms.

Mapping the origins of the world's crops

Food has evolved alongside humanity, and through globalized trade, much of the world can enjoy foods once isolated to one region. Examine where your favorite foods originated from and see how diet differs across cultures with these interactive...

Six Degrees of Wikipedia, where any two articles connect in six clicks or fewer

Enter any two topics (or use suggestions) and find the shortest path of links between them. The game playfully illustrates the vast interconnections of human knowledge.