Novel Inspiration: Nautolans for 5th edition

Nautolans are a highly adaptable amphibious humanoid species canon to the Star Wars Universe, the most famous being Jedi Master Kit Fisto.

Nautolans make an excellent species template for any aquatic scifi species or fantasy race. Their comfort both above and below water makes them ideal for mixed-surface-aquatic parties of adventurers, allowing them the flexibility to travel from the depths of the ocean to the middle of the desert without suffering stresses worse than an average human in non-aquatic environments. Their hardy physique combined with their natural insight into the emotions and behavior of living creatures make them both capable warriors and shrewd diplomats.