Salt Marsh Harvest Mouse (Reithrodontomys Raviventris)

San Francisco Bay — which has already lost the majority of its marsh habitat since the 19th Century — could lose even more marshes by the year 2100 due to sea level rise, according to a new USGS report. Animations, graphs and data from the USGS Open File Report 2013-1081 and the USGS project "Modeling Sea-Level Rise in San Francisco Bay Estuary" can be found online. 

This photo is of the salt marsh harvest mouse (Reithrodontomys raviventris), an endangered species dependent on San Francisco Bay marshes.