Bulwall

The Bulwall are an aquatic mammalian species very similar to the whales found on Earth, but are bipedal with a pair of arms and legs and a tail very similar to that of an eel. They are typically between 6 to 9 ft tall and are usually weighed between 300 to 600 lb. Just like whales, they need oxygen to breathe, and they can survive up to 14 days underwater before coming back up for more oxygen, however due to the fact they have legs, they are able to survive on surface just as long as they are close enough to water so they can keep their skin moisturized. Not getting enough water can cause their skin to get leathery which can cause several health issues for the species.

Space Capability
Despite their technological level being on par with that of most other species, they are significantly behind when it comes to space exploration and space colonization, being more closer to what human kind was able to do during the 1960's prior to the moon landing. They currently have two vessels that are capable of orbiting the planet, whether these vessels are capable of traveling beyond their home system is currently unknown due to a lack of testing.

A multitude of factors present reasons why they don't aim to travel beyond their own solar system. The primary factor is due to their culture putting major significance into Planet Argos, having a strong belief that no other planet can't compare to their home. Two minor reasons that they don't try to leave their home planet is due to the necessity of being close to water to prevent health issues and the fact that their home planet is surrounded by numerous asteroid belts making entering or exiting the planet very difficult.

The Karr
The Karr are very large species of Crustaceans, significantly stronger than The Bulwall but far inferior when it comes to technological prowess. Many outsiders have compared the Karr to numerous hunter-gatherer societies across the Galaxy, as researchers recall them living in it very simplistic hut like structures, migrating every so often to a new location depending on what time of year it is, and referring to go on a hunting expeditions rather than growing crops or domesticating animals.

The Karr hunt a multitude of different species, however the primary species they go after is the Bulwall, primarily for their meat, they're skin to be used as a sort of leather, and any armor or weapon that they possess so they can reforge them into armor and weapons that they can use for themselves.