San Francisco's Pier 39 sea lions: Why they hang out here
Sea lions at Pier 39 in San Francisco: 30 Years Later - The New York Times
California Sea Lions, Pier 39 - Ed O'Keeffe Photography
San Francisco County Piers: A Guide - Los Angeles Times
Sea lion - Wikipedia
Two San Francisco Bay swimmers bit by sea lions
Where are the sea lions? Have they left? : r/sanfrancisco
U.S. Coast Guard boat passes by the docks with flock of sleeping sea lions at Pier 39 in San Francisco, California, United States Stock Photo - Alamy
San Francisco's Pier 39 sea lions: Why they hang out here
Readers have suggestions to keep sea lions off boats – Orange County Register
The Painted Sea Lions of San Francisco
Parrots vs. sea lions: Battle for the Official Animal of San Francisco