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  • Tracing the evolutionary origins of fish to shallow ocean waters

    In a report in Science, a team led by paleobiologist Lauren Sallan of the School of Arts and Sciences finds that ancient fish species diversified in near-shore ocean areas, not coral reefs.
    Ancient fish swimming at the bottom of the seabed
    Bothriolepis, an armored, bottom-dwelling placoderm related to some of the earliest jawed vertebrates to appear in the record, lived mostly at the coasts. Research by Lauren Sallan and colleagues found that such groups diversified in shallow ocean waters before spreading out to other habitat types. (Image: Nobumichi Tamura)

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  • From a desert to an oasis: Penn engages in ambitious greening effort in the Sahel
    People gather around a large map placed on the floor.

    In Senegal, the ambitious Dakar Greenbelt project seeks to create an extensive network of ecological infrastructure in and around the city to sustainably address environmental concerns and enhance urban life. With support from David Gouverneur and Ellen Neises, Ph.D. candidate Rob Levinthal in the Weitzman School of Design led two courses that included a field trip to Dakar, that culminated in students presenting their visions for parts of the Greenbelt.

    (Image: Courtesy of Chaowu Li)

    From a desert to an oasis: Penn engages in ambitious greening effort in the Sahel

    Students from the Weitzman School of Design journeyed to Senegal to help with a massive ecological and infrastructural greening effort as part of their coursework. The Dakar Greenbelt aims to combat desertification and promote sustainable urban growth.

    Jan 31, 2025

    An illuminating celebration to a brighter, greener future
    The exterior of the Vagelos building lit up with dramatic lighting.

    The new Vagelos Laboratory for Energy Science and Technology boasts adaptable laboratory spaces to support the dynamic needs of pioneering research.

    nocred

    An illuminating celebration to a brighter, greener future

    Members of the Penn community celebrated an energy research milestone: the unveiling of the new Vagelos Laboratory for Energy Science and Technology.

    Dec 12, 2024