Department of Biology

Feeding worker and queen

Social evolution: honey bee nurse workers rear larvae as either new queens or new workers

Behavior

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

Larix siberica

Siberian Larch, taken at our field site near Lake Khovsgol in north-central Mongolia. We are analyzing tree-ring width and stable isotopes of the tree rings to reconstruct climate, and Larch responses to climate change, over the past century as the temperature in Mongolia has risen.

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

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.

Polymorphism

Shell color polymorphism in Littorina obtusata.

Bacterial Microcolonies

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

News

Meeting with Nobel Laureates

March 14, 2014
Congratulations to Dorothy Cheney

March 12, 2014
Promotion for Kim Gallagher

March 12, 2014
Phil Rea elected AAAS fellow

November 25, 2013

More News »

Events

Mr. Riley Graham - University of Pennsylvania

April 22, 2014 - 12:00pm - 1:00pm

109 Leidy Lab
Olivier Tenaillon, Inserm: French Institute of Health and Medical Research

April 24, 2014 - 4:00pm

Leidy Laboratories Room 109
Ms. Aurora MacRae-Crerar - University of Pennsylvania

April 29, 2014 - 12:00pm - 1:00pm

109 Leidy Lab

More Events »

Highlights

Construction of the Neural and Behavioral Science Building

Demolition of the Kaplan Wing, Mudd Building and the Vivarium Wing of Leidy Labs has begun. Web Cams have been installed in Lynch Laboratory and Goddard Laboratory. They provide a time delayed image of the site to allow users to follow both the demolition activities and also the subsequent construction. Additional architectural renderings are also available.