Illustration of a forest scene, with prehistoric animals on either side of a creek. In the foreground, a black and blue striped lizard-like animal perches on a rock as it appears to hunt a winged insect. A smaller lizard crosses a log over the creek. On the other side, two flat-faced, pig-sized animals approach the water’s edge, and a dinosaur creeps in the background.

These New Fossil Discoveries Show Why Evolution is the Coolest

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Close-up of a white clam with a long arm protruding from its shell, on a black background

The Chemosynthesis Hypothesis: Do Clams and Bacteria Work Together?

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Dorsal view of Xylophaga dorsalis shell and body, with g pointing to white spots.

Bacteria Save the Day...Maybe

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Comparative Gill and Labial Palp Morphology (Mollusca: Bivalvia)

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2010 REU Intern Emily Rudick

The Field Museum

Chicago Adventure, Part Three: Little Skeletons

Media

Evolution of Human Reproduction

Brazil 2012 Fieldwork Diary Entry 2: The Puzzling Question of Therapsid Origins

Darwin and museum collections

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Image for Darwin and museum collections

Evolution and patterns of reproduction in Philippine mammals

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2010 REU Intern Vincent Fitzpatrick

The evolution of an ant-plant mutualism

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2010 REU Intern Sara Zufan

William Simpson

Akiko Shinya

Robert Martin

Robert  Martin

Media for Staff Profile

Paul Mayer

Ken Angielczyk

Susan Mochel

John Bates

Janet Voight

Ben Marks

Shannon Hackett

Kevin Feldheim, A. Watson Armour III Manager of the Pritzker Laboratory for Molecular Systematics and Evolution

Kevin Feldheim

Lance Grande

Media for Focus: Fossil Invertebrates

Scott Lidgard

Al Newton portrait

Alfred Newton

Bruce Patterson, Curator Emeritus (right), and colleague (left)

Bruce Patterson

Olivier Rieppel

Margaret Thayer portrait

Margaret Thayer

Petra Sierwald

Matthew Nelsen

Media for Plants & Fungi

Thorsten Lumbsch

When birds lose the ability to fly, their bodies change faster than their feathers

It would take 23 million years for evolution to replace Madagascar’s endangered mammals “Now or never” for preventing extinction

Survival of the newest: the mammals that survive mass extinctions aren’t as “boring” as scientists thought

Ancient Iowan superpredator got big by front-loading its growth in its youth

The evolution of Asia’s mammals was dictated by ancient climate change and rising mountains

Ants took over the world by following flowering plants out of prehistoric forests

First Stories: The Ice Age Art of Sulawesi

Grainger Bioinformatics Center Publications