Complex sentence: Millions of years later, the Quintessons, a space-faring race of squid-like creatures who inhabited a planet named Quintessa, liked to experiment, creating creatures that were hybrids of the technological and biological.
Split into simpler sentences: Millions of years ago, the Quintessons were a space-faring race of squid-like creatures that inhabited a planet named Quintessa. They liked to experiment, creating creatures that were hybrids of the technological and biological.