| Some people mistake the similar looking mudpuppy for the hellbender. |
| Tailbud embryos also varied in size, with the scorpion fish measuring only 700 micrometers and the mudpuppy measuring 9.25 millimeters. |
| The mudpuppy, a long-lived, sedentary amphibian of the lower Great Lakes continues to show promise as an indicator species. |
| When larvae have transformed into juvenile mussels they are likely released into the hiding place of the Mudpuppy, creating large clusters of mussels in one area. |
| Blatchley did record the mudpuppy as common in the Wabash River, and later recorded a siren from a lowland pond in southern Vigo County. |
| It also exhibits neoteny, retaining larval characteristics like external gills into adulthood, like the American amphibians, the axolotl and the mudpuppy. |
