Yellowstone National Park's Old Faithful can be relied on to erupt every 10 minutes or so. Steamboat Geyser cannot. It went dormant for years, then woke back up. There's a new video showing a massive eruption of Steamboat for the first time in months.
There is always an uneasy peace between bears and wolves in Yellowstone National Park. That was witnessed by guests (and workers) in the park a few days ago as a grizzly and two wolves came face-to-snout in a showdown in Hayden Valley.