In 2013, an alarming number of National Park redwood trees were shorn of their knobby protrusions, called burls. The trees were disfigured by thieves aiming to sell distinctive burl wood to luxury furniture retailers. One team was bold enough to fell an entire tree for its burl. Kirk Crippens and Gretchen LeMaistre read about these trees in the news and were motivated to go and see them. Rangers from the Redwood National and State Parks assisted them in accessing and photographing each site. From 2013 to 2016, they made many visits to the National Park redwood forests of Humboldt County, California.\n\nOn their first trip to the region, they passed a tourist attraction called \"Trees of Mystery\". The entrance featured a 50-foot effigy of an American folklore lumberjack, Paul Bunyan, and a large souvenir store with a neon sign that read, \"Live Burls\". At first they laughed at the spectacle; but the sign brewed in the back of their minds as they began to explore the lure and the lore of giant redwoods.\n\nWhile redwood trees are sensational for their size, their burls are unique for less obvious reasons.\nRedwood burls contain stem cells that enable the trees to clone themselves. In a sense, a redwood tree may never truly die because the burls genetic codes maintain cycles of reproduction dating back nearly 200 million years when the species began. Only one percent of redwood seeds become trees; instead, burls generate the majority of trees. Redwood trees and their cousin sequoias sometimes exist for as long as three thousand years. For these reasons, they were given the species name \"Semper Virens\", or \"Ever Living\". Steinbeck once referred to them as \"ambassadors of another time\".\n\nOut of respect for their ancient heritage and after an extended period of aggressive logging,\nTheodore Roosevelt pioneered forest preservation efforts in the early 20th century. He is famously\nquoted as saying, \"A grove of giant redwoods or sequoias should be kept just as we keep a great or beautiful cathedral.\" Today less than five percent of old-growth coast redwood forest remains in\nthe Northern Hemisphere, most living in the Redwood National and State Parks. Yet even the\nprotected trees are subject to threat. Shorn trees are more vulnerable to disease, and their ability to reproduce is uncertain. Decades may pass before the full extent of poaching damage can be\nassessed.\n\nBased in San Francisco, California, Kirk Crippens and Gretchen LeMaistre have worked\ntogether for over 10 years and are also independent artists. Kirk's work is held in the collections of\nMuseé de la Photographie, Charleroi, Belgium, RayKo Photo Center, San Francisco, US, and the\nMuseum of Fine Arts in Houston, US, amongst others. In 2015, one of Kirk's portraits was included\nin the Taylor Wessing Portrait Prize exhibition in London, UK. Gretchen's work is also held in the\ncollection of the Museum of Fine Arts in Houston, and has been exhibited at SPMOMA, San\nFrancisco, US. In 2016, Live Burls was exhibited at Candela Gallery, Richmond (VA), USA and\nDatz Museum of Art, Gwangju, South Korea.