• Evolution of the Bird Brain (Virtual)

    (MD) (Natural History Society of Maryland) This talk explores the Mesozoic origin of avian flight from the perspective of the dinosaurian brain. Fossil reconstructions will be integrated with advanced imaging to test hypotheses on how the brain of theropods met the sensory and motor changes of this rare and radical behavioral innovation. Amy Balanoff is an assistant professor in the ...

    Free – $5
  • National Cherry Blossom Festival

    (DC)(MD)(VA) The four-week festival celebrates the enduring friendship between the people of the United States and Japan and the beauty of DC's iconic cherry blossom trees with diverse and creative programming. Events will be happening throughout the DC metro area.

  • Fruit to Poop: A Seed’s Journey

    US Botanic Garden 100 Maryland Ave SW, Washington DC, United States

    (DC) (US Botanic Garden) What's the connection between fruit and poop? Join Lilly Andersen, USBG Family Education Specialist, and and USBG volunteers to explore how plants and animals help each other and the relationship between plants making fruit and animals eating that fruit. Think and learn about what makes a fruit a fruit, why fruits tend to taste sweet, and ...

  • Invasive Plants Removal at Dyke Marsh

    Dyke Marsh Alexandria, VA, United States

    (VA) (Friends of Dyke Marsh) Help protect native plants by pulling and clipping invasive plants. We will train volunteers to identify the five or so target plants. We kindly ask that you not bring pets. Invasive plants can threaten and outcompete native plants. Bring gloves, hand clippers and water. We will supply instructions, examples and trash bags.

  • Invasive Plant Removal at 630 East

    Reservation 630 East 2801 Quebec Street Northwest, Washington

    (DC) (Rock Creek Conservancy) Join Rock Creek Conservancy and Weed Warrior leader Rena Subotnik or this invasive plant removal restoration event in Rock Creek Park. Invasive plants are a major threat to our fragile forests, and stopping their spread helps allow native plants to thrive in the understory. Event location, directions, and information will be sent from the event leader ...

  • Invasive Plant Removal at Broad Branch

    (DC) (Rock Creek Conservancy) Join Rock Creek Conservancy and the National Park Service for this invasive plant removal restoration event in Rock Creek Park. Invasive plants are a major threat to our fragile forests, and stopping their spread helps allow native plants to thrive in the understory. Event location, directions, and information will be sent from the event leader 48 ...

  • Wild Rice Seeding at River Terrace

    River Terrace Park 382 Anacostia Ave NE, Washington, DC, United States

    (DC) (Anacostia Watershed Society) Join the Anacostia Watershed Society to propagate wild rice (Zizania aquatica) seeds through mudballing (seeding) in wetlands along the River Terrace Park section of the Anacostia River. We will mix the wild rice seeds in mud and toss our wild rice mudballs into exposed mudflats to encourage plant growth.

  • Shepherd Parkway Community Cleanup

    Shepherd Parkway 555 Newcomb Street SE, Washington, DC, United States

    (DC) (Ward 8 Woods) Join Ward 8 Woods every second Saturday of the month to restore Shepherd Parkway by removing trash and invasive vines that are smothering the trees. Since 2011, over 2,000 volunteers have removed over 200 tons of trash from the woods and cut invasive vines from over 500 trees, but much work remains to be done. Give back ...

    Free