The phenomenon of flash suppression seemed to have been known since the 19th century.

Not everyone is enjoying low prices just yet, although the phenomenon does seem to be spreading.

The phenomenon seems to be more popular in urban areas and their nearby suburbs.

This phenomenon seems to be much more prevalent among men than women.

But now, he said, this phenomenon seems to be spreading to younger athletes.

These phenomena, however, seemed to cause him not the least surprise.

The phenomenon seems to me to be different in kind from the first.

Interestingly, this same phenomenon seems to occur in the elderly as well.

But the phenomenon seems to be more common among black men than whites.

Now, the weird phenomena seem to have stopped, but the scientists are at a loss to explain why.