This only informs us of its condition relative to the planet's capabilities.

Of its actual state our data are not definite enough to furnish much deduction.

But from the fact that our own development has been comparatively a recent thing, and that a long time would be needed to bring even Mars to his present geological condition, we may judge any life he may support to be not only relatively, but really older than our own.

From the little we can see such appears to be the case.

The evidence of handicraft, if such it be, points to a highly intelligent mind behind it.