Mooplexian

The Mooplexians are the wisest species of the Yonder galaxy. While they appear to be dumb beasts to outsiders, this is only their physical form, as they are much more advanced in their true mental forms.

Biology
They appear to be amphibious creatures with red hair, a single arm that acts as a leg and human-like legs in place of arms. Their method of reproduction is unknown, as is their lifespan, though it's possible they're immortal.