Arborist Jen Kettell teaches best techniques for pruning shrubs on February 28 at 9:00am. Register »
David Donovan leads a winter walk among the conifers on February 28 at 12:30pm. Register »
The Arnold Arboretum of Harvard University is a community resource for education, offering a variety of learning opportunities including lectures, classes, workshops, and tours of our living collections and historical landscape. Join us as we explore the biology and horticulture of woody plants, and delve into topics related to Earth’s biodiversity and evolutionary history, the environment, conservation biology, and key social issues associated with current science.
Mass Extinctions: A Brief History of Life’s Worst Moments
Phoebe Cohen, PhD, Assistant Professor of Geosciences, Williams College
1 Session: Thursday, February 26, 7:00–8:15pm
Location: Hunnewell Building
Life on Earth has experienced at least five major events we call “mass extinctions,” during which a huge number of species have gone extinct in a short period of time. In this talk, paleontologist Phoebe Cohen will explore how scientists decide which extinctions get to be considered “mass,” the ways in which these events have reshaped life as we know it, and how a deep understanding of past extinctions can help us see the future.
Fee $5 member, $10 nonmember