A wildlife biologist and ranger at Yosemite National Park, Dr. Shannon Joslin, who identifies as nonbinary, was fired after participating in the hanging of a large transgender pride flag from El Capitan. The flag measured approximately 55 by 35 feet and was displayed as a protest against the Trump administration's policies. The incident occurred in May 2025, and Joslin, a graduate student at UC Davis, described being transgender as a natural part of human and biological diversity. In addition to Joslin's termination, some park visitors who took part in the demonstration face potential prosecution under tightened protest restrictions implemented during President Donald Trump's administration. The National Park Service confirmed the firing, emphasizing the enforcement of regulations concerning unauthorized displays within the park. The event has sparked discussions about free speech and political expression in national parks.