National Wildlife Day is observed in the United States on February 22 and September 4, with the latter date marking the anniversary of the death of famous Australian naturalist Steve Irwin. The holiday was created by animal behaviorist Colleen Paige to highlight the plight of endangered species and to acknowledge the efforts of animal sanctuaries, zoos, and rehabilitation centers in preserving these animals. On this day, environmental organizations and activists host events to educate the public about endangered species and ways to contribute to conservation efforts. Activities can include volunteering at local zoos or animal sanctuaries and donating to conservation organizations. Additionally, individuals are encouraged to adopt more sustainable practices, such as reducing plastic use, to help protect wildlife. National Wildlife Day is part of a broader movement that includes other environmental observances, such as World Wildlife Day on March 3.