Although no one is sure of the answer, theories abound.

In town, many theories abound as to why the shift happened and how the river could be put back.

Theories about the cause abound, and the news media has reported each new one with delight.

As they continue, theories abound about what is causing it.

Theories abound about why the difference between the two sides exists.

No one knows what happened to the calves, but theories abound.

Yet the conspiracy theories still abound and grow as time goes on.

Theories abound as to where such a handsome animal came from.

While theories abound on the cause of the colors, there is currently no clear answer.

Paranoid theories abound, but the government was involved in some way, and nobody knows exactly how yet.