National Endangered Species Day, also known as Endangered Species Day, is observed worldwide every third Friday of May. It was founded by David Robinson and the Endangered Species Coalition, receiving unanimous approval from the United States Senate in 2006. The day aims to highlight the plight of thousands of species threatened by extinction, with over 42,100 species classified as threatened according to the IUCN Red List as of 2023. Participants engage in various activities, including attending events organized by conservation groups, zoos, aquariums, and schools, as well as volunteering for conservation organizations and spreading awareness on social media using the hashtags #NationalEndangeredSpeciesDay and #EndangeredSpeciesDay. The observance encourages individuals to learn about endangered species and take action to help protect them.