The camouflage was intact and I'd moved up into the next evolutionary stage.

The planet is largely inhospitable but, because of its evolutionary stage, was valuable as a working lab.

No matter - doctors at their present evolutionary stage do not travel much in the course of a day's work.

The change in form and kinds of the lower animals was even more marked than the evolutionary stages of man.

But so far the Government's relationship with the stock market is in an early, evolutionary stage.

In the course of this expansion, the universe underwent several evolutionary stages.

The aliens are at least one or two and possibly three evolutionary stages beyond us.

Its advanced evolutionary stage shows that it is considerably older than the Sun.

These represent the final evolutionary stage of many main-sequence stars.

Our modern hypothesis is that the job was done in gradual evolutionary stages by natural selection.