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  • 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.

  • Porphyrogenes peterwegii

     Pupa of the butterfly Porphyrogenes peterwegii "peering" out of its leafy nest with false eyes, which in turn mimic the eyes of a snake, thereby protecting the pupa from small feather-brained  birds.

  • Escherichia coli

    Escherichia coli cells with fluorescently labeled chromosomal loci. 

  • Arabidopsis

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

  • 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.  

Please Note

Due the COVID-19 epidemic, the University of Pennsylvania has ceased all on-campus activities. As such, our team will be working remotely until further notice. If you need assistance, please send an email to biology@sas.upenn.edu, and we will happily assist you in a virtual format. For immediate service during normal working hours (M-F, 9am to 5pm) our phones are operational.

Stay safe and take care.

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We value interdisciplinary collaboration and collegiality, and strive to integrate biology across scales and across approaches to transcend the traditional boundaries of biological studies.

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