Juan Liu 

Principal Investigator

Assistant Adjunct Professor, Department of Integrative Biology (IB)

Assistant Curator, University of California Museum of Paleontology (UCMP)

Research Associate, American Museum of Natural History (AMNH)


Liu earned her M.S. from the Institute of Vertebrate Paleontology and Paleoanthropology (China) and PhD from the University of Alberta (Canada), studying fossil fish. Liu then spent several years as a visiting scholar at the American Museum of Natural History (USA). Prior to joining the IB and UCMP, she had been an assistant professor at the State University of New York at Buffalo, where she taught anatomy.  She enjoys her research on the evolution of fossil fishes and the functional anatomy of the auditory system. In her leisure time, she enjoys practicing Taiji. 

Jennifer Hoeflich

Graduate Student


Jennifer Hoeflich is a third year graduate student in the department of Integrative Biology, whose thesis research is focused on conductive hearing in Ictalurid catfishes, particularly how ecological factors influence the morphology and function of their multi-ossicle chain. Jennifer went to the University of Florida for undergrad and did research with the Florida Museum of Natural History. Currently doing research on the evolution and function of the Weberian apparatus along with working in the UCMP collections on fossil fishes. 

Derrick Leong

Graduate Student


Derrick Leong is a second-year graduate student in the Integrative Biology department at UC Berkeley. He attended UC San Diego as an undergraduate and received his bachelor's degree in Geology at the Scripps Institute of Oceanography. Some of his research interests include phylogenetics, functional morphology, and the evolution of stem-tetrapods. His current research is on lateral line evolution in Devonian fishes and stem-tetrapods of the Red Hill, Nevada locality. During his free time, Derrick enjoys playing sports, the violin, and video games.

Rangarajan Bharadwaj



Ranga is currently a sophomore at Cal and he hopes to graduate as a public health and IB major. He joined Liu labs over the past summer and is broadly interested in understanding the evolution of Vertebrate hearing as well as developing new analytical processes to better understand the fossil record. Ranga has recently done some work related to CT imaging and comparative anatomy and hopes to apply that in his future work. He loves collecting fossils and rocks and in his free time, his favorite activity is either playing music or swimming.

Katherine Walton



Katherine Walton is a third-year integrative biology major, intending to minor in data science. Her research work centers on penguin anatomy: she is currently comparing penguin ear structures to those of fish and marine mammals, as well as measuring bone density across penguin species as a potential indicator of foraging behavior. Outside the lab, she enjoys writing and spending time at the beach. 

Tony Zehua Zhou



Zehua (Tony) Zhou is a third-year undergraduate in the College of Letters and Science, majoring in Integrative Biology and Data Science. He is currently working on the segmentation of the lateral line canals in the extant and fossil fishes and refining clearing and staining methods. Besides academics, Tony also shows interest in cooking and basketball and could hop on to a trip to aquariums at any time.

Morgan Dickson



I am a first year undergraduate in the College of Letters and Sciences intending to major in molecular and cellular biology. I am passionate about evolutionary and biological sciences. I joined the Liu Lab this fall as a scientific illustrator to produce pictorial diagrams of fossil fishes to be used in publications, exhibitions and other suitable occasions. Outside of the lab I enjoy reading, writing, spending quality time with friends, and snowboarding! 

Johan Zhang



Johan Zhang is a third-year undergraduate in the College of Letters and Science, hoping to graduate as a Molecular and Cell Biology major. His current research work consists mainly of segmenting lateral line canals in early tetrapodomorphs as well as understanding aspects of their evolution. In his free time, he enjoys swimming, running, and playing video games. He is currently interested in medicine, specifically pediatrics, and hopes to attend medical school one day. :)




Ian Strieter


Chrisy Jiyun Yoon

Medical Student at University of Buffalo

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