The Frog is a hostile Mob in Mechanic Miner.
Where
The frogs are found in the mines of the Marsh. There's usually a bunch of frogs together with a Leader Frog.
Behavior
Attacking or nearing the frogs will aggravate them, and cause the whole pack - including the Leader Frog to attack you. The frogs move slowly, but because of it's jumping movement it's able to climb smaller vehicles.
Drops
Upon killing a Frog you will be rewarded with some experience. In addition you'll have a chance of receiving the following upon harvesting the corpse of the frog: Protein Bakelite