And here, from the dark days of 1979, is the Mets other official animal mascot.
METTLE THE MULE!
After the death of original Mets owner Joan Payson, her daughter Lorinda DeRoulet assumed control of the team. Apparently Lorinda's daughter Bebe convinced her that it would be a good idea to get a mule as their new mascot, Mr. Met having been retired by then. (More about that in a later post.) I assume this was inspired by Charlie Finley's mule mascot in Oakland.
So for the 1979 season, Arthur the Mule made his entrance. Why Arthur? No one seems to know. Reportedly there were discussions about having the mule wheel in Met relief pitchers from the bullpen. Thankfully, that idea never got anywhere.
Later that season, the Mets ran a contest to rename the mule. The winning entry was "Mettle", which actually is a damn good nickname for a Mets mascot.
Sadly, all good things must end. After the 1979 season, deRoulet sold the team to the Doubleday/Wilpon partnership. They apparently had no use for Mettle, and that was that.
Mettle is gone, but not forgotten,