The Pebble Plains ecosystem, found only in the San Bernardino Mountains, survived six ice ages and human development. Now it’s facing its biggest threat. Girls’ flag football is now an official high school sport in SoCal, thanks to a vote by the California Interscholastic Federation’s southern section. It’s the fastest-growing version of the sport globally, says Paula Hart Rodas from CIF. This Sunday, CicLAvia will close seven miles of roads to cars. The route goes through Echo Park, Chinatown, Little Tokyo, and Boyle Heights. There will be food trucks, water refill stations, bike parking, and more.