SAN FRANCISCO -- San Francisco's Pier 39 is getting a lot of attention right now. It's seeing the largest number of sea lions gathered in about 15 years. The sea lions first appeared at Pier 39 after ...

Of all the schemes that humans have devised to keep sea lions from gorging on the salmon of the Columbia River basin, none has worked for long. Local officials and researchers have chased sea lions ...

Spelunkers have probably heard of the largest, most unexplored cave in the world, but there's one that might be more fun to visit. Oregon's coastline harbors a natural wonder that makes average ...