The Missoulian reports that Montana Fish, Wildlife and Parks bear manager Jamie Jonkel caught something unexpected on the trail camera he set up to monitor a trout spawning stream on a tributary of the Blackfoot River. He expected to get videos of black bears catching rainbow trout. And he did.
But he also got a video of a mountain lion pouncing on a trout and then another shot of the lion with the trout in its mouth.
See the article for speculation about how rare or common this behavior is in mountain lions, as well as speculation for its cause. For the record, the article says that the area is good mountain lion habitat with plenty of game.