Karr

The Karr are very large species of Crustaceans, significantly stronger than The Bulwall, a race of aquatic mammals similar to whales who they share their home planet of Argos with, but far inferior when it comes to their 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.

The 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.