Media and Public Relations

Where Innovation Is Tradition

Media Sources Guide

TOPIC: GeologyClear

Mark Uhen

Assistant Term Professor, Department of Atmospheric, Oceanic and Earth Sciences

Expertise: Oceanic Science, Environment, Marine Mammals, Geology

Mark Uhen is a geologist and an expert in the evolution of cetaceans and other marine mammals. He looks at changes in the diversity of whale species and how they correlate with the evolution and diversification of diatoms, tiny, abundant algae that live in the ocean. Uhen also looks at the ways that fossil diversity is affected by global changes.

He is interested in how the body size of whales changes over time, and how whales became the largest living organisms in the world.

Media Contact: Michele McDonald, 703-993-8781,