If you would like to celebrate, special activities are scheduled at the zoos in San Diego, Santa Ana, Los Angeles and San Francisco, at Yosemite National Park, San Diego National Wildlife Refuge, San Diego Botanic Gardens, Cabrillo Marine Aquarium in San Pedro, Buena Vista Audubon Society Nature Center, San Francisco Zoo and Sacramento’s Beach Lake Park. Visit www.endangeredspeciesday.org to learn more.