The Gw'oth (singular: Gw'o) are sentient creatures resembling starfish that inhabit the ocean under the ice of their home world, the moon Jm'ho. When linked together -- using a vestigial talent that few Gw'oth retain -- they can form a powerful biological computer. One such instance is named Ol't'ro. Ol't'ro is composed of 16 Gw'oth individuals that link themselves together into a 'meld' or ensemble mind called a Gw'otesht. Ol't'ro is featured prominently throughout the Fleet of Worlds series.