The U.S. Geological Survey (USGS) Landsat satellites have revealed patterns of change across our crowded planet. This time series shows changes to the Aral Sea over the years. See more Landsat time series images: http://esri.social/KV2b50LaIiH | Esri

Specially constructed passages that allow fish to go around dams or other barriers are key to migratory fish accessing spawning areas, nurseries and other crucial habitats. On the Atlantic coast, American Shad, Blueback Herring, American Eel and Atlantic Striped Bass all rely on these ladder-like fish roads during their long journeys between the ocean and fresh water rivers and streams. The U.S. Geological Survey, working with states and other partners, helps identify the best location for these

Earthquake! This animated map uses U.S. Geological Survey (USGS) data to map earthquake events with a magnitude of 6.0 and greater from 1900 to November 2019. Watch it full-screen at 4K resolution on YouTube: http://ow.ly/9le050xwQCi | Esri