Photos: Sea lions swarm the docks at San Francisco’s Pier 39

Visitors are swarming to see over 1,000 barking, blubbery sea lions bask at San Francisco’s famous Pier 39.

The sudden increase in the K-dock population over the past week is likely due to an influx of nearby anchovies coming from the Farallon Islands, said longtime harbormaster Sheila Chandor. The steady supply of food is also making the mammals extra active. Or maybe it’s just pier pressure?

“A lot of sea lions are converging on the Channel Islands down south for mating, so they...