Stories tagged by 'Henry Skinner'

  • pinned specimen of a stag beetle

    “Specimen”

    February 29, 2012

    How many invertebrate species do you think Philadelphia’s Eastern State Penitentiary holds?
    » Read More

Plan your visit, check out our new exhibits, and find out about upcoming activities.
Discover the past and explore the future of the natural sciences in our online exhibits.
Make a difference, browse our programs, and get involved with the natural world.