The Russian Doodle Terrier is a medium-sized dog breed known for its curly coat, which is a mix of Poodle and Russian Terrier lineage. It is intelligent, energetic, and highly trainable, thriving in active households. This breed is also recognized for its friendly demeanor and loyalty.

The 'Russian Doodle Terrier' does not appear to be a recognized animal species in scientific literature or databases. It is possible that this name refers to a fictional or hybrid breed rather than a naturally occurring species. For any common names or hybrid breeds, please ensure they correspond to a recognized animal species for accurate information.