Finally, Finn went to the chemistry department at his college to see if anyone there might be able to help. Tom Trom looked into the problem, and came up with a solution. The little frogs had succumbed to a chemical change in the swamp's water, and simply couldn't stay coupled long enough to reproduce. Tom brewed up a new adhesive, made from a dash of this, a zoss of that, and most critically, one part sodium.
"You mean?.... " Jim said when told.
"Yes," said Tom, "They needed mono-sodium glue to mate."