Ecology

Walk among the largest stand of large-flowered trillium in Virginia at GR Thompson Wildlife Management Area (WMA) in Linden, VA. These iconic woodland wildflowers are identified by three large petals, which start white and deepen to rose as they age. A great many other spring ephemerals growing in this area promise to delight both expert and beginner naturalists. On this 5.5 mile hike we will gain about 1000 ft of elevation, and we will hike about 2.0 mph when moving. Photos encouraged! **Hike Route:** Trillium 5.5/1000 (UpperTedLake) on AllTrails https://www.alltrails.com/explore/map/trillium-5-5-1000-uppertedlake-92262bf **Time to Meet:** Please meet 15-20 min prior to hike start for introductions and liability waiver sign in. **RSVP:** RSVP to register for this hike. If your plans change, please edit your RSVP 24-48 hours before the hike to open a spot for another hiker. This request also applies to hikers on the Waitlist. RSVPs close at 6 PM the evening before the hike. **Meeting Location/Parking:** 3750 Freezeland Road, Linden, VA. Room for 10-12 cars. **Carpooling strongly recommended.** If we should fill available parking, we will shuttle hikers from a small park (a minute or two away). **GPS 38.93950, -78.03943** **Group Size:** 20 hikers **Facilities:** Privy at Manassas Gap shelter, a mile or so into the hike. **Access Fee:** Hike leader will secure WMA group access permit and pay daily access fee for hikers. **For this reason, NO SHOWS and last minite RSVP updates are discouraged.** **Contact Information:** Please use the comments feature for comments and questions. The hike leader is Lisa P. **Cancellation:** In the unlikely event that the hike needs to be cancelled, hikers will be notified through comments on this posting. Please check Meetup for updates before leaving for the hike. **What to Bring:** Water at least two liters, emergency contact information, medications, snacks/meal, insect repellent, sunscreen/protection from weather, and personal first aid kit. Trekking poles if you use them, sturdy hiking footwear. Please leave pets at home. Thanks! **PATC:** * To find out more about PATC, [click here](https://www.patc.net/)**.** * Consider becoming a member of PATC. To join, [click here](https://www.patc.net/membership) Attendance is limited at the discretion of our hike leaders. PATC rules do not permit children under 18 years to participate in a hike without a parent or guardian present.

Called an "instant classic" by the Washington Post, Miles transports readers to a remote, windswept island where a high-stakes ecological experiment is spiraling into a **blackly comic nightmare**. The mission: to eliminate an invasive species of goats that threatens the local ecosystem. But as the isolation sets in and the moral lines blur, the human inhabitants find themselves caught in a "fist-gnawing comedy of errors" that questions the very ethics of playing God. Described by critics as **"basically, *Hamlet* but with goats,"** this slim yet virtuosic novel is a masterclass in tone, pivoting effortlessly from bumbling absurdity to profound moral terror. It is a biting, witty, and deeply philosophical fable about the precariousness of our world and the ghosts of the choices we make. **“An instant classic.” —*The Washington Pos*t • “Excellent ” —*The New York Times* • “Urgent and lyrical.” —NPR**

This event is for all my singles who are looking to attend a dating event with a twist! must RSVP via Eventbrite. Come out and meet other singles, and form connections based on cosmic compatibility. There will be speed, dating, great music, great vibes, giveaways, and other surprises! There will be a different astrology theme every week. Speed dating, astrological, matchmaking, astrology game nights, etc make sure you are locked in and following us at. @TheeZodiacStore on IG and TikTok!

This is introductory meditation for people who wants to learn basics of meditation. It's a free event held every week and everyone is welcome to join.

***Feel free to come earlier to ensure we have enough courts!*** **Remember to bring a can of new or lightly used tennis balls.** By signing up to this Meetup event, you agree * To practice effective social distancing and hold yourself 100% responsible for protecting yourself against exposure to Covid-19 and any other cooties. * To not hold anyone (including Meetup.com) liable should you be exposed to Covid-19 by attending this event. * To decline attending if you suspect you have any of the Covid-19-related symptoms (we can wait until you're better to show your tennis prowess). Please bring a can of NEW tennis balls. As usual, this meetup is cancelled if the weather doesn't permit us to play If you see others waiting to use the courts, please limit your play to one short set (best of 5 games), where the losing team rotates out. Thanks in advance!!

🌿 Wild Edibles: Late Spring Foraging Walk (NHSM Program) Have you ever wondered what edible plants grow quietly around us in Maryland forests? Join members of our group for a guided **wild edible plant walk** hosted by the Natural History Society of Maryland. We’ll be attending **Wild Edibles: Late Spring Plants**, a field program led by experienced forager Nick Spero. During the walk, participants will learn how to identify edible plants that emerge in Maryland’s woods during late spring. Along the way, instructor Nick Spero will discuss safe identification, ethical harvesting practices, and how these plants have traditionally been used for food and flavor. Species often discussed include **wild ginger, ramps, spicebush**, and other seasonal plants that grow in our region. The program is designed as a relaxed **nature exploration with discussion and plant identification along the trail**. Expect light to moderate hiking, frequent stops to observe plants up close, and plenty of opportunities to ask questions and learn from the landscape. More details about the program can be found here: [https://www.marylandnature.org/get-involved/events/event/wild-edibles-late-spring-plants-with-nick-spero-2/](https://www.marylandnature.org/get-involved/events/event/wild-edibles-late-spring-plants-with-nick-spero-2/) — 🥾 Difficulty — Easy to moderate walking with frequent stops for plant identification and discussion. — 💲 Cost — This is a **paid program organized by the Natural History Society of Maryland**. • Non‑NHSM Member — **$45** • NHSM Member — **$35** — 📍 Location — The exact meeting location is not listed unless you register for the event. In general, the event is Northeast of Baltimore and about an hour from Shady Groove Metro. — 📝 Registration — Members who plan to attend should **RSVP here on Meetup and also register directly with the Natural History Society of Maryland through their website**. Participants will **pay NHSM directly** when registering for the program. — 🎒 What to Bring — Based on the Natural History Society of Maryland's recommendations for this program: • Weather‑appropriate clothing (layers work best) • Sturdy closed‑toe hiking shoes or boots with good traction • Water and snacks • Sun protection such as sunblock and a hat • Bug spray if desired • Optional: a camera, guidebook, binoculars, or a small magnifying lens for examining plants These items help ensure everyone is comfortable during the walk and able to closely observe the plants we encounter along the trail. — 🚗 Carpooling — Once the location is confirmed, we can **coordinate optional carpooling through the Meetup event page** for anyone interested in sharing a ride. This should be a great opportunity to **learn about native plants, explore the landscape together, and deepen our understanding of the food that grows around us**.

***Colvin Run 1st Saturday Social Ballroom Dance.*** **We invite you to join us for our Social Ballroom dance to open the Holiday Season! Our Dance Hall is beautifully decorated and ready to welcome our dancers to enjoy the warm, festive holiday spirit and atmosphere!** 7:30-8:30 pm: Rumba Dance Lesson by **Amber Logan, of Moxie Movement!** 8:30-11:00 pm: Ballroom dance to **DJ music by Ed Cottrell** Dress is "ballroom casual." Please, no jeans, cut-offs or T shirts. Dress to Impress! $15 (cash or check) for the full evening includes lesson, dance, cold water, and scrumptious snacks No partner, experience or reservations needed. Don't have a partner? Come to Colvin Run Dance Hall where you will find friendly partners HAPPY to meet you and dance with you!! 1,850 sq. ft. beautiful oak dance floor. Plenty of free, safe parking. ## Questions? Find Colvin Run at [http://www.colvinrun.org](https://colvinrun.us7.list-manage.com/track/click?u=9abd22bfb1858c46263c2620b&id=a653d4304d&e=dc73d9bfad) or visit [https:](https://colvinrun.us7.list-manage.com/track/click?u=9abd22bfb1858c46263c2620b&id=b3877963d5&e=dc73d9bfad)[//www.meetup.com/colvinrun-org/events](https://colvinrun.us7.list-manage.com/track/click?u=9abd22bfb1858c46263c2620b&id=eda6408288&e=dc73d9bfad) or contact [Conrad.Heer@ColvinRun.org](mailto:Kathy.Milks@colvinrun.org)

**This talk is completely sold out in advance and no door tickets will be available. You must have purchased a ticket to be admitted.** [Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Exploring the Deep Sea,”** a scholarly dive into an enormous and little-understood ecosystem, with Melissa Betters, deep ocean explorer and deep-sea biologist at the Smithsonian Natural History Museum. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-deep-sea](https://events.ticketleap.com/tickets/profsandpints/dc-deep-sea) .] If you’re afraid of the deepest, darkest reaches of the ocean, you aren’t alone. For centuries, humans have imagined the ocean’s depths to be inhabited by all manner of monsters, from the Kraken to Godzilla. But what is the cost of viewing over 70% of our planet with fear and aversion? Who benefits from that? Come to see the deep sea as far more worthy of fascination than fear with the help of Dr. Melissa Betters, a biologist and marine ecosystem researcher who has made nine trips to the bottom of the ocean and taught at Bryn Mawr College and Temple University. She’ll take you on a scholarly exploration of various deep-sea ecosystems around the world such as deep coral reefs and boiling-hot hydrothermal vents. We’ll get to know some of the deep ocean’s captivating biodiversity, examining where it lives, what it does, and why it matters to us. With her help you’ll come to see the deep ocean as a tapestry of different environments, each of which host their own forms of life and present their own suite of ecological challenges. Importantly, we’ll also look at how the deep ocean is portrayed in both myth and media, considering how our perceptions are skewed by the rhetoric used to describe it and the images used to depict it. Despite appearing far-removed and out of reach, the deep ocean is still a part of our planet, subject to all the same challenges and human impacts as life on land. The final part of this talk will examine the variety of human impacts affecting the deep ocean and actions we can take to protect Earth’s final frontier. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: Magnoteuthis magna, the most common deep-ocean squid, as photographed in Kinlan Canyon off of Rhode Island (NOAA Ocean Exploration photo).

You must read the following NVHC Sign-in Sheet Statement/Liability Disclaimer, **[https://nvhc.com/signin.pdf](https://nvhc.com/signin.pdf)** and then answer the question that you will see when you RSVP with "**I Accept"** to be permitted on the hike. **8.00 mile circuit hike with 500 feet of elevation gain.** **Description:** Our Hike will begin at **Pennyfield Lock 22** along the **C&O Canal** in the **[Pennyfield Lock Parking Lot](https://montgomeryparks.org/wp-content/uploads/2016/08/Montgomery-Parks-Blockhouse-Point-Trail-Map-letter-2024_a11y.pdf)** , and heads over to the **[C&O Canal Towpath.](https://www.canaltrust.org/plan/co-canal-towpath/)** While walking along the water’s edge, keep an eye out for sunbathing **[turtles](https://www.canaltrust.org/2020/10/top-5-photographed-turtle-species-on-the-co-canal/)**, elegant **[Blue Herons](https://potomac.org/blog/2022/7/11/5-large-birds-you-can-easily-spot-along-the-potomac-river)** and yes, **[snakes](https://www.nps.gov/choh/learn/nature/reptiles-amphibians.htm)** too, all the while soaking in sweeping views of the **Potomac River.** From there the hike heads up into the **[BlockHouse Point](https://montgomeryparks.org/parks-and-trails/block-house-point-conservation-park/)**[ ](https://montgomeryparks.org/parks-and-trails/block-house-point-conservation-park/)**[Conservation Park](https://montgomeryparks.org/parks-and-trails/block-house-point-conservation-park/)** offering spectacular views of the **[Potomac River](https://www.americanrivers.org/river/potomac-river/).** **Facilities:** Portable bathrooms at the trailhead **Hike Pace**: Pace will be about **2.0 – 2.5 mph** while moving. **Bring:** Adequate water/hydration, snacks/lunch, insect repellant and sturdy hiking shoes since there are some rocky areas/tree roots, stream crossing. Hiking poles if you normally use them. **Fee:** None **Dogs:** dogs are welcome on this hike in accordance with the **[NVHC Dog Policy](https://tinyurl.com/nvhcdogpolicy)**. Please be sure your dog is able to hike the distance, **Where to Meet:** **GPS Coordinates**: **39°03'14.7"N 77°17'20.4"W** **[LINK](https://maps.app.goo.gl/1eeDTXwpeV94x4cC8)** **Address:** Pennyfield Lock Road Parking Lot, **12400 Pennyfield Lock Rd · Potomac, MD** Pennyfield Lock Road is about 5.5 miles northwest of Potomac Village on River Road. Turn left onto Pennyfield Lock Road, take it to the very end, then turn left, and continue a few hundred feet to the Porta-Johns where we will park. **CONTACT INFO:** Any questions, please message me here or text me at 703 533 9231 Dawn K. Hike Leader **MAPS:** **[BlockHouse Point Conservation Park](https://montgomeryparks.org/wp-content/uploads/2016/08/Montgomery-Parks-Blockhouse-Point-Trail-Map-letter-2024_a11y.pdf)** **[AllTrails](https://www.alltrails.com/trail/us/maryland/blockhouse-point-loop-trail)**

Join NVBA and come prepared to test your knowledge and quick thinking at a bird-themed trivia night, hosted by NextGen Birders for Conservation at the Northern Virginia Bird Alliance HQ! Even if you think you know a lot about birds, nature, and wildlife, we hope that you will learn something new and have fun doing it. There will also be small prizes for the top-scoring participants! Given that this is the first event of this nature being hosted by NextGen, we will be informal in our approach to how you participate. Once you arrive, feel free to form small groups - you don't need to form groups ahead of time. The trivia will begin at 7:15PM sharp, after everyone has had a chance to settle in, and we will wrap things up by 8:45PM to allow for final score tallying, tiebreakers, and prizes. Even if you do not want to participate in the trivia, this could be a good opportunity to socialize and network with like-minded individuals who appreciate nature and knowledge. We will have snacks and beverages available - feel free to bring your own snacks as well. At the end of the event, we will announce upcoming NextGen and NVBA events - we encourage everybody who comes out to continue being involved with our bird walks and other events! Please come to the front door of the building and follow instructions posted on the door to contact somebody who will let you into the building and direct you to the location of the event. Any updates to this event will be sent as an email/notification to people who have RSVP'd "Yes."

***Registration required - https://loudounwildlife.org/event/writing-in-nature-may/*** Join Nancy Morgan, Director Emeritus, Georgetown Lombardi Arts and Humanities Program, for this monthly workshop, presented by Loudoun Wildlife Conservancy, to enjoy the combined health benefits of time spent in nature and writing thoughts and feelings. Writing is often considered a solo, reflective practice, but writing in the company of others can be a supportive, community building activity that encourages regular practice. Each session is a stand-alone event – come when you are able. ***Questions:*** *Contact [info@loudounwildlife.org](mailto:info@loudounwildlife.org).*

**Ed and Gail's Second Saturday Hustle/West Coast Swing Night** NEW!!! Ed and Gail's Second Saturday Dance will now feature hustle and west coast swing music, by popular demand. Lessons will be taught by guest instructors. Note: We will continue our long-running Fourth Saturday Hustle/West Coast Swing Night with Joyce Szili - So you'll have TWO opportunities per month for hustle and west coast swing dancing! Saturday, March 28 Guest Instructor Shawn Brennan 7:00 pm - 7:45 pm Beginner Hustle 7:45 pm - 8:30 pm Intermediate Hustle 8:30-11:00 pm Dance (Variety) $15 cash, check, or Venmo

***WE WISH ALL OUR DANCE FAMILY A WONDERFUL THANKSGIVING!!!*** **Please Note**: Michael Sims will not be with us this evening. Michael is out of town competing on December 20. We wish him well in his competition! This month we have a substitute guest instructor and DJ. **7:30 - 8:30 PM: Waltz Dance lesson by** **Guest Instructor TeRay Bingam of Crown Dance Studio** **8:30 - 11:00 PM: Ballroom Dance music by DJ TeRay Bingam of Crown Dance Studio** $15 (cash or check) includes the lesson plus the dance, cold water and scrumptious snacks Dress is "ballroom casual." Please no cutoffs, T-shirts or jeans. Dress to Impress! No experience, reservations or partner needed. All Singles Welcome!! 1,850 sq. ft. beautiful oak dance floor. Plenty of free, safe parking

Meet new friends and enjoy a **medium/low difficulty hike** at Ball’s Bluff Regional Park! This hike focuses on good conversation and fresh air as we hike through wooded trails, with scenic views of the Potomac River. It’s a perfect way to connect with others who love the outdoors and take in the natural beauty of Leesburg during this 3-hour hike. Ball’s Bluff Regional Park is a hidden gem rich in history and natural beauty. The park features winding forest trails, scenic river views, and quiet spots perfect for taking a break or chatting with fellow hikers. Once the site of a Civil War battle, it’s now a serene place to enjoy nature and experience a peaceful escape just minutes from downtown Leesburg. **Meeting Time & Location:** 9:30 AM at the **Ball's Bluff Regional Park Parking Lot**. **Distance:** 5.34 miles (approximately) **Elevation Gain:** 643 feet **Difficulty:** Moderate Hike This hike features natural trails with moderate difficulty, including some elevation gains. We recommend wearing sturdy hiking shoes to navigate this terrain comfortably. **Estimated Duration:** 3 hours. **Waitlist Policy** To keep things fair, hikers will be moved off the waitlist in this order: **1\. Regular Hikers:** Those who join hikes often get first priority. **2\. Past Hikers:** Next are returning hikers, based on attendance and cancellation history. Frequent cancellations may lower priority. **3\. New Hikers:** New members will be added as space allows. **Age Requirement:** **Children under 18 are not permitted** to ensure a comfortable experience for all participants. Thank you for your understanding and cooperation. **Pace:** Moderate. We'll walk a steady, comfortable pace that’s manageable for most hikers with a reasonable fitness level. Breaks are regular but not overly frequent, allowing for a balanced experience of exercise and enjoyment. **Trail Map:** [Ball's Bluff - 5.34mi loop](https://www.alltrails.com/explore/custom-routes/custom-route-ball-s-bluff-red-and-orange-loop-0010dae?u=i&sh=mdqqtd) **Restrooms:** Restrooms are not available on this hike. **Lunch After the Hike:** After we wrap up our hike, we invite you to join us for a relaxed lunch together. We'll meet for a casual lunch at **[Vanish Farmwoods Brewery,](https://maps.app.goo.gl/RRviGPewRvUmow46A)** *[42245 Black Hops Lane](https://maps.app.goo.gl/RRviGPewRvUmow46A)* *[Leesburg, VA 20176](https://maps.app.goo.gl/RRviGPewRvUmow46A)*

256 pages [Technology] • Paperback • Hardcover • Kindle • Audiobook • Library: https://fcplcat.fairfaxcounty.gov/search/title.aspx?ctx=1.1033.0.0.1&pos=1&cn=614113 Check the How To Find Us section for Zoom Link **(Remember, the Zoom Link is different each month, do not bookmark)** ### Review "[Co-Intelligence] is a solid explainer. Convincing…a blueprint…smart and well informed…"— The Wall Street Journal "A sharp and good-humoured guide to how to make the most of generative AI. Mollick follows his own prescription for success, 'inviting AI to the table' and running his own experiements into its creative and problem-solving potential." * Andrew Hill, The Financial Times "Generative AI has an oracle, and his name is Ethan Mollick. Lucky you: our oracle has written a lucid, succinct, and eminently practical guide to navigating the revolution that is right now unfolding at an astonishing pace. Co-Intelligence is the very best book I know about the ins, outs, and ethics of generative AI. Drop everything and read it cover to cover NOW." — Angela Duckworth, New York Times bestselling author of Grit "Ethan Mollick has been a leader with the hands-on exploration of AI's evolving capabilities. In Co-Intelligence, he masterfully navigates the landscape of AI advancements with insightful and informative commentary, presented with remarkable clarity and precision. This book is an invaluable resource, offering a comprehensive gide to current trends and future expectations in AI. I wholeheartedly recommend it to anyone looking to deepen their understanding of this rapidly evolving technology." — Eric Horvitz, Chief Scientific Officer, Microsoft “In today’s cacophony of ‘AI hot takes’, Mollick has distinguished himself as the leading voice of reason on the implications of AI for work and education. Anyone seeking a basis of practical knowledge to understand the coming massive changes should read this insightful book right now." — Reid Hoffman, Co-Founder of LinkedIn and Inflection AI "Co-Intelligence brilliantly captures the essence of our evolving relationship with AI. With lucid explanations and useful examples, Mollick shows how we can enlist this technology's astonishing power to build a more intelligent and humane future." — Daniel H. Pink, New York Times bestselling author of The Power of Regret, Drive, and A Whole New Mind “Embark on a transformative journey with Co-Intelligence, Ethan Mollick’s page-turning must-read for those at the helm. Mollick’s work will help CEOs and leaders harness AI’s enormous potential as a catalyst for elevating the capabilities of any team and any organization. Brilliant, authoritative, and educational.” — Jim M. Citrin, Leader, Spencer Stuart CEO & Board Practice, author of You’re in Charge, Now What? and The 5 Patterns of Extraordinary Careers ### About the Author Ethan Mollick is a professor of management at Wharton, specializing in entrepreneurship and innovation. His research has been featured in various publications, including Forbes, The New York Times, and The Wall Street Journal. He is the creator of numerous educational games on a variety of topics. He lives and teaches in Philadelphia, Pennsylvania.

You must read the following NVHC Sign-in Sheet Statement/Liability Disclaimer, [https://nvhc.com/signin.pdf](https://nvhc.com/signin.pdf) and then answer the question that you will see when you RSVP with "I accept" to be permitted on the hike. This is a 7.75 mile hike with 250 feet of elevation gain around [Beaverdam Reservoir](https://www.theburn.com/2024/10/16/sneak-preview-of-loudouns-new-reservoir-park/) in the Brambleton/Ashburn area of Loudoun County. At the halfway point we will stop for a snack break. Trails may be muddy. GPS Coordinates for Reservoir Park: 39.003061, -77.535332 [https://maps.app.goo.gl/EUJMVEAaVHP7gwA5A](https://maps.app.goo.gl/EUJMVEAaVHP7gwA5A) Meet at the parking lot near the Visitor Center. ***Google Maps may try to take you into the park on Alford Rd, do not go that way you cannot get in that way as it is gated. From the main road you need to turn where the sign says NRPA then continue straight in past the ballfield parking lot until you see the entrance sign to Reservoir Park, then follow to Visitor Center.*** We hike at a pace of 2.5 to 3.0 mph while moving. Dogs are permitted on this hike in accordance with the NVHC Dog Policy. [https://tinyurl.com/nvhcdogpolicy](https://tinyurl.com/nvhcdogpolicy) Leader: Ed Brimberg 703-944-9920 Park Entry Fee: $0.00 AllTrails Map for hike: [https://www.alltrails.com/explore/recording/activity-may-5-2025-72cad9e?u=i&sh=7cs7ov](https://www.alltrails.com/explore/recording/activity-may-5-2025-72cad9e?u=i&sh=7cs7ov)