The variation seems to be genetic rather than environmentally induced.

Yet such modest variations over the past two million years seem to have acted to turn ice ages on and off.

It was found that "the variation of sleep duration among children does not seem to have an effect on growth."

Local variations seem to have sprung up that were adopted, used and then discarded as the years progressed.

Genetic variations do seem to cluster differently for people with different continents of origin, but is this race?

The variations seemed to have no relation to the states' population or number of slayings.

The variations are endless and seem ludicrous to those watching at home.

If ever a variation of our scene seemed beyond the descriptions in her letter, it nevertheless turned out to be Lucy's imagination that directed!

To the visitors approaching the system, the wild variations of the outer worlds at first seemed to dominate everything.

These changes, or variations, in the generative system seem to me very remarkable.