In the Star Wars universe, the space whales are known as purrgil. They are a semi-sentient species of massive whales that live in deep space, traveling from star system to star system. Purrgil are not like normal water or land-based whales, as they live in space and require a specific green gas to breathe. They are often a bluish-purple color and move gracefully thanks to four large hind tentacles, along with two side fins and a dorsal fin. Purrgil are capable of naturally jumping into hyperspace and create their own tunnels through hyperspace known as "purrgil tunnels". They are rarely seen, simply because most starships dont allow their pilots or co-pilots the kind of 360-degree view given to Grogu in his station in Din Djarins N-1 Starfighter. Purrgil are an important part of galactic history and have been woven into the galaxys lore in other media, including Star Wars Rebels. Despite being intelligent beings, these Star Wars space whales are known to fly into hyperspace lanes and crash into ships, killing passengers.