Wildlife Expeditions

Journey to the Wild

Guides & Staff

  • Patrick Leary

    Director of Wildlife Expeditions
    B.A. Anthropology/Archaeology, Willamette University, Oregon

    Patrick joined Teton Science Schools in 2013. Prior to arriving at TSS, Patrick worked as an environmental education instructor and as an assistant director for the outdoor education program at YMCA Camp Colman in Washington. He has also worked as a coordinator for a teen volunteer program in Missoula, Montana, as a seasonal employee of the United States Forest Service and as a backpacking guide in Guatemala. During his time as a member of the TSS community, Patrick has served as an AmeriCorps intern with the Field Education department, as a field instructor and faculty member and as a biologist with Wildlife Expeditions.

  • Chrissy Wolf

    Custom & Multi-Day Tour Coordinator
    B.S. Recreation Management and Policy, Program Administration
    B.S. EcoGastronomy


    Chrissy joined the Teton Science Schools team in 2014, after moving from rural New Hampshire. She has worked for the organization in many capacities, as a field education AmeriCorps member, as a program assistant for day camp, and as the summer program director at Teton Valley Community School. She is thrilled to now be a part of the Wildlife Expeditions team. In her free time, she enjoys mountain biking, telemark skiing, cooking, gardening and music.

  •  Kevin Taylor

     M.S. Botany, University of Wyoming
     B.S. Biology, Bradley University, Illinois

    Kevin has a Bachelor of Science degree and a Master of Science degree in Botany. His biological research experience includes being involved with several wildlife research projects as well as mapping distribution of rare plant species and the effects of global warming on mountain plants. He believes that it is critical to include modern humans when discussing natural history and ecology and he studies and teaches ethnobotany and ethnozoology. Kevin brings to Wildlife Expeditions experience in plant taxonomy, natural history knowledge due to spending a lot of time in the woods, and a teaching background educating all ages of the wonders and value of conservation of the natural world.

  •  Paul Brown

     B.A., Environmental Studies, Ramapo College, New Jersey

    After graduating from Ramapo College, Paul worked for the U.S. Forest Service and New Jersey Audubon. He relocated to Jackson Hole in the spring of 2001 and has led a variety of environmental education programs, primarily guiding in the Greater Yellowstone Geo-ecosystem for Wildlife Expeditions. He has worked on several research projects in the area, including studying the wolf population of Yellowstone National Park with the Yellowstone Wolf Project. He has also guided polar bear expeditions in Churchill, Manitoba.

  • Dylan Klinesteker

    B.A. Environmental Education: Interpretation and Outdoor Education, Western Washington University

    Dylan has spent most of his professional life working and living in some of the most beautiful and inspiring places in America. He has had the opportunity to educate visitors in Death Valley National Park, Redwood National and State Parks, North Cascades National Park, and now finds himself in Grand Teton and Yellowstone National Parks. In his free time, Dylan likes to ride one of his many bikes, keep his '88 Westfalia running, and take pictures of this beautiful world.

  •  Sarah Ernst

     Lead Guide
     B.A., Philosophy, Mount Holyoke College, Massachusetts

    Sarah grew up fascinated by nature in the not-so-wild lands of a NYC suburb in Connecticut. After earning a Bachelor of Arts degree, she transitioned to leading nature programs and running a nature center in the beautiful Lowcountry of South Carolina. She was lured to Wyoming by a life-long love of it's mountains and plains. She is known for her broad knowledge base of the Greater Yellowstone Ecosystem and geeky enthusiasm for all wildlife, large and small.

  •  Trevor LaClair

     B.S. Fisheries and Wildlife, University of Missouri

    Originally a small town, farm boy from Missouri's Ozarks, Trevor has developed a lifelong passion for wildlife and adventure. While working toward his M.A. in Biology, Trevor has traveled to places such as the African Serengeti, Great Barrier Reef and Komodo National Park. He's worked with animals in multiple zoos and sanctuaries and is skilled in a variety of outdoor activities. Aside from guiding, Trevor also enjoys wildlife filmmaking and photography, developing his portfolio which can be viewed at trekkingwithtrevor.com.

  • Thyme Cooke
    B.S. Zoology, University of Wyoming

    As a true Wyomingite, Thyme grew up in Wyoming and has had the opportunity to enjoy all this beautiful state has to offer. A graduate of the University of Wyoming, Thyme worked as a field technician monitoring mule deer migration routes in Bridger-Teton National Forest; studying effects of gas and oil development on Colorado River cutthroat trout; and researching a potentially endangered pocket gopher species in the Red Desert. She also worked as a laboratory technician at the Wyoming State Vet Lab in the Virology Department. Thyme enjoys fly fishing, snowboarding, hiking, camping, and is always looking forward to her next adventure!

  • Drew Overholser
    M.A., American History, Montana State University
    Graduate Program of Teton Science Schools
    B.A., History, Ohio Wesleyan University

    Drew first came to live in Jackson Hole when taking part in the Graduate Program of Teton Science Schools in 1998. Prior to returning to the area and joining the Journeys School of TSS faculty in 2001, he conducted wetland education for a non-profit program in Montana, led naturalist ski tours just outside of Yellowstone National Park and guided raft trips on the Colorado, Green and Salmon rivers. His academic focus in graduate school was the environmental history of the Greater Yellowstone Ecosystem and he continues to enjoy teaching and learning about the human and natural history of this amazing place. During his time off, Drew enjoys running, reading, birding, and spending time on the water with his wife and two children.

  • Sarah Wedner
    B.S., Recreation Administration: Outdoor Resource Management, San Diego State University

    Sarah first fell in love with Wyoming in the summer of 2014 while working toward her degree as an intern in Grand Teton National Park. Nature, education and stewardship have always been important facets of Sarah's life, and throughout the years she has enjoyed volunteering for various outdoor organizations, parks and preserves. Since obtaining her degree, Sarah embarked on the great adventure of being a tour bus driver/guide in Denali, Alaska and a park ranger intern for Mount Rainier National Park, where she protected fragile subalpine ecosystems, worked search and rescue, and led outdoor educational programs for elementary school children. Sarah's greatest passions are hiking, traveling, and sharing her love of nature with others!

  • Hunter Jones

    B.S., Environmental Studies and Marine Science, Eckerd College

    Hunter developed a passion for the outdoors at an early age having spent most of her adolescence visiting the Bighorn Mountains of Wyoming with her family to ski and explore. Prior to working at Teton Science Schools, Hunter guided wakeboarding, kayaking, and camping trips, while also completing research on the Indian River Lagoon, Tampa Bay, and Atlantic Ocean on a transatlantic voyage. She then dove deep into the wonders that is place-based education while working with youth groups in Casper, Wyoming. Currently part of the Teton Science Schools community, Hunter has worn many different hats, having worked at the Teton Valley Community School, Field Education, and Wildlife Expeditions. In her free time, Hunter enjoys finding natural places to read in her hammock and hiking with her australian shepherd, River.

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