The California freshwater shrimp, an endangered species found only in a handful of Marin, Sonoma and Napa watersheds, appears to be making a comeback in Olema Creek. A team of biologists from the National Park Service recently discovered some of the delicate crustaceans a half-mile farther upstream than they had previously been spotted. “California Freshwater Shrimp continue to make strides in Olema Creek!” the team declared last month in an Instagram post adorned with four shrimp emojis. “This recent discovery indicates that the species continues to reclaim its historic habitat in Olema Creek. Hopefully, we will continue to see the expansion and recovery of this endangered species in the watershed.” The California freshwater shrimp is the smallest species of concern in the Point Reyes National Seashore, and it has been listed as federally endangered since 1988. It is only found in portions of 16 streams in Marin, Sonoma and Napa Counties, with the most viable population in Lagunitas Creek and its tributaries. Olema Creek is the largest tributary in the Lagunitas Creek watershed. The shrimp has been threatened by the introduction of hatchery fish, water diversion, agricultural activities, flood-control activities, timber harvesting and water pollution. The 10-legged creature inhabits flat, perennially flowing streams with slow-moving water. Adult females measure from 1 to 2 inches, and the males don’t grow longer than 1.5 inches.