Sun's out this afternoon so I went out, too. With my camera. On a garden path, I spotted this beetle under a leaf. Then I saw something wiggling next to it. An earthworm.
An earthworm being eaten alive by the beetle. Sad, but that's nature.
I've seen this kind of black beetle before. The kind experts at Bugguide.net told me that it's a ground beetle (Cyclotrachelus sp.).