Rare San Francisco river otter appearance stumps researchers

The Associated PressRARE APPEARANCE: A river otter carries seaweed back to its nest Thursday in San Francisco. For the first time in decades, a river otter has made San Francisco its home, taking up residence in the ruins of the Sutro baths, a 19th century seaside public pool facing the Pacific Ocea...

The Associated PressSUTRO BATHS: Spectators line the ruins of the Sutro Baths Thursday for a glimpse of a river otter Thursday in San Francisco.