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Professor Jaelyn Eberle will teach and pursue a hypothesis that a Cretaceous land bridge between Asia and North America was a dispersal route for land mammals at the time

Jaelyn Eberle, a University of Colorado Boulder professor of geological sciences and CU Museum of Natural History curator of fossil vertebrates, has received a Fulbright U.S. Scholar award to study the extensive collection of Cretaceous (about 75 million years old) Mongolian mammals housed at the Institute of Paleobiology in Warsaw, Poland.

Eberle will travel to Poland Aug. 31 to begin work comparing the Mongolian mammal collection with fossil mammals that she and her colleagues discovered on the North Slope of Alaska, in the hopes of identifying some of the earliest mammals to cross from Asia into North America via Beringia, a prehistoric land bridge that once connected the two continents. Along with Professor Lucja Fostowicz-Frelik, Eberle also will team-teach a graduate seminar on the Cretaceous-Paleogene boundary for the BioPlanet Doctoral School in Poland, which attracts PhD students in biology, geology and biochemistry from across Europe.

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Jaelyn Eberle, a CU Boulder professor of geological sciences and CU Museum of Natural History curator of fossil vertebrates, has received a Fulbright U.S. Scholar award to study the Cretaceous Mongolian mammals housed at the Institute of Paleobiology in Warsaw, Poland.

“Until now, my research has focused mostly on North American fossil mammals,” Eberle explains. “The Fulbright award allows me to broaden my research to include ancient Mongolian mammals and collaborate with the foremost expert on them, Dr. Fostowicz-Frelik. I am also excited to co-teach a class with Dr. Fostowicz-Frelik; this will build my knowledge of the Eurasian fossil record and inject new content, perspective and teaching styles into my courses at CU Boulder.

“Being immersed in the language and culture of Poland for four months and teaching PhD students from across Europe will also give me perspective on how to better support CU students from international backgrounds, too.”

Fulbright U.S. Scholars are faculty, researchers, administrators and established professionals teaching or conducting research in affiliation with institutes abroad. Fulbright Scholars engage in cutting-edge research and expand their professional networks, often continuing research collaborations started abroad and laying the groundwork for forging future partnerships between institutions.

“Professor Eberle’s fascinating research is important not only because it advances scientific knowledge, it also expands the Museum Institute’s vibrant international collaborations, helping us to connect with scholars around the globe,” says Nancy Stevens, director of the Museum Institute and professor of anthropology.

Upon returning to their home countries, institutions, labs and classrooms, they share their stories and often become active supporters of international exchange, inviting foreign scholars to campus and encouraging colleagues and students to go abroad.

More than 800 individuals teach or conduct research abroad through the�� annually. In addition,��more than 2,000 Fulbright U.S. Student Program participants—recent college graduates, graduate students and early-career professionals—participate in study/research exchanges or as English teaching assistants in local schools abroad each year.

Fulbright is a program of the U.S. Department of State, with funding provided by the U.S. Government. Participating governments and host institutions, corporations and foundations around the world also provide direct and indirect support to the program, which operates in over 160 countries worldwide.

As a Fulbright U.S. Scholar, Eberle will further her study of fossil mammals, their evolution during past intervals of global warmth and their dispersal across the Northern Hemisphere when polar land bridges connected North America to both Asia and Europe.

“I hypothesize that some of the Cretaceous Alaskan mammals belong to Asian lineages; if true, this would provide direct evidence that Beringia was a dispersal route for land mammals at the time,” Eberle explains. “The Alaskan fauna preserves the northernmost known mammals of the Mesozoic Era (or Age of Dinosaurs), and our team’s latest findings mean it may also include among the earliest mammalian immigrants from Asia to North America.��

Jaelyn Eberle (foreground, yellow jacket) and her colleagues quarry for tiny vertebrate fossils in Alaska's Prince Creek Formation. (Photo: Kevin May)

Many of the mammal teeth Jaelyn Eberle studies are the size of sand grains. This is a tooth of the tiny Alaskan mammal Sikuomys mikros (meaning "tiny ice mouse") that lived in northern Alaska about 72 million years ago. (Photo: Jaelyn Eberle)

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