60 City Grazing goats graze the rail yard of the Port of San Francisco in the Bayview Hunter’s Point neighborhood of San Francisco, California, Thursday, January 5, 2012. City Grazing has 60 goats on a 10-acre site ringed by a rail yard as a ???rent-a-goat??? service that provides an ecological alternative method for weeding. Ramin Rahimian for The Bay Citizen