Department of Biology

Polymorphism

Shell color polymorphism in Littorina obtusata.

Bacterial Microcolonies

Cell-to-cell variability of Vibrio choerae expressing green fluorescent protein from a flagellar promoter.

Social evolution

Social sharing of liquid food between ant nestmates ©Alexander Wild

Arabidopsis

Wild-type and transgenic Arabidopsis plants expressing miR156, a microRNA that promotes juvenility and increases the rate of leaf initiation

Escherichia coli

Escherichia coli cells with fluorescently labeled chromosomal loci.

Bacterial Respiratory Complex

Structural model of a bacterial respiratory complex III: remember that when you respire, your complex III perspires to produce your body's energy.

Malaria parasites

Malaria parasites (and their kin) can be viewed as minimal eukaryotes, harboring a nucleus (yellow), a secretory pathway the Golgi (purple) and specialized ‘rhotpry’ organelle (black), and two endosymbiotic organelles, the mitochondrion (red) and apicoplast (green).

Behavior

Baboon mother and offspring cross a flood plain in the Okavango Delta, Botswana

News

Josh Plotkin to receive the 2015 Akira Okubo Prize in Mathematical Biology

February 18, 2015
Scott Poethig and Junhyong Kim Awarded Endowed Chairs in Biology

February 4, 2015
Penn Biologist Honored for the 2014 Blue Planet Prize

September 8, 2014
Promotions to Professor

May 12, 2014

More News »

Events

Mitchell Johnson

March 3, 2015 - 12:00pm - 1:00pm

Goddard 100
Yoh Isogai, Harvard University

March 3, 2015 - 4:00pm - 5:00pm

Leidy Laboratories, Room 109
Katy Kao, Texas A&M University

March 5, 2015 - 4:00pm - 5:00pm

Leidy Laboratories, Room 109

More Events »

Highlights

Ted Abel

Brush Family Professor of Biology

The primary focus of research in the Abel lab is to understand the cellular and molecular mechanisms of long-term memory storage with a focus on the mammalian hippocampus. One of the hallmarks of long-term memory storage is that it requires the synthesis of new genes and new proteins, which act to alter the strength of synaptic connections within appropriate neuronal circuits in the brain.