Squams were of the more primitive species who did not metamorphose.

That is not how warfare against a primitive species should progress.

Such primitive species have exhibited similar behavior in the past, particularly when they believe their numbers are greatly superior.

My guess is that they're an earlier, more primitive species, destined for extinction.

The Gradian government otherwise avoided contact with them since they were a primitive species.

It's a horrible situation but we're a primitive species.

How can we be sure that anything our primitive species ever designed would be effective against it?

"I'm too good to interfere in the affairs of primitive species, even though they're the ones who need my help the most!"

The most primitive species originated by spontaneous generation, but these gave rise to more advanced ones.

"I'm kind of surprised that his mother would be willing to leave him alone in the care of a primitive species like us."