There once was an advanced alien species known as the Eloh.

And likely to be so for any technologically advanced species.

This is the price that must be paid, but replicates society in general and will ultimately lead to a more advanced human species.

Here is an example of their most advanced species.

But he was glad to be among an advanced species again, with comforts that were more familiar to him.

They believed he was sent by Earth as the most advanced species of the planet.

To see if there was any contact with a technically advanced species who had a prior claim on the planet.

They're quite an advanced species, and they wish to open diplomatic relations.

We seem to be the most advanced species they have met.

What you are describing just cannot be true in an advanced species, Archie insisted.