Skura are around 200m long, and are shaped like long snakes, with carbon-titanium armour and an unjawed mouth. However, they have fins that fold out to reveal missile racks.
These missiles have independent FTL drives, and have a yield of approximately 700 megatons. They are guided by the concentration of the Skura.
Skura eat metal ores and the charred remains of other Vesanians.
Every ten years, Skura reproduce. They head down to a planet and lay eggs deep within the crust.
When the eggs are gestated, after around 2 months, the Skura return and use their missiles to uncover the area above the Skura cub, taking care not to damage it. It then climbs out and takes off, then takes twenty-five years to reach full size and become able to reproduce.
Skura are non-sapient, but can learn to get around problems.