Palos Verdes Peninsula is home to fascinating natural history: If we dug straight down we’d run into everything from sharks teeth, fish scales, whale bones, mammoths, and saber tooth cats, and even giant bison.

With the help of the Palos Verdes Peninsula Land Conservancy walkers can make unique discoveries while out in nature: The Palos Verdes Blue butterfly and the El Segundo Blue butterfly are not found anywhere else in the world beyond the coast of the peninsula. Take a photo and share your discoveries with fellow walkers.