At Katmai National Park & Preserve in Alaska, salmon are the lifeblood of a fertile coastal ecosystem. At Brooks Falls, the salmon must run a gauntlet of hungry bears, wolves, birds and other fish-eaters before proceeding further inland to spawn. Every summer, tens of thousands of sockeye salmon migrate from Bristol Bay to spawn in rivers adjacent to large lakes, such as the Brooks River, which connects Lake Brooks and Naknek Lake in the park. These homecoming salmon—weighing an average of 5-7 p

194K views · 2K shares | We've seen some amazing moments on our Katmai National Park & Preserve #BearCam this year. New cubs, returning yearlings, and lots of bears filling their bellies with salmon. Watch all the action now at explore.org/bears | explore.org | Facebook

8.9M views · 193K reactions | Alaska has some wild volcanoes  out over Katmai National Park 朗! Flying with Russ & his crew | John Derting | Facebook

244K views · 4.7K reactions | Ranger David Kopshever of Katmai National Park & Preserve joins explore.org in welcoming you to a whole new season of #BearCam! explore.org is the only online destination to watch wild brown bears. | explore.org | Facebook