Gulf Coast Waterdogs
By Wetland and Aquatic Research Center
2019 (approx.)
![Gulf Coast waterdog (Necturus beyeri)](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/waterdog.jpg?itok=oAZp9VQF)
Detailed Description
An adult Gulf Coast waterdog. This species is neotenic, meaning adults mature while retaining juvenile characteristics (such as the external gills seen here), and never metamorphose to a land-based life.
Sources/Usage
Public Domain.