There it is, a gob of minced meat of unknown origin, just as I found it next to a pool in the Butte Creek watershed.
Fred sniffed it tentatively and left it alone.
I photographed it with an 8" crescent wrench for perspective.
Here are some other clues to help you solve the riddle.
It was 2:00 on Memorial Day, temperature in the 90s, and Fred barked several times as we climbed down the slope to the pool on the creek.
Now then, what left the gob of minced meat?