Some modern scholars have speculated that the two were lovers.

Scholars have speculated that the perception of color has been evolutionary.

Scholars speculate this was due to the high importance the culture placed on hospitality.

Some archaeologists and Biblical scholars speculate as to the source of the tradition.

Some scholars speculate that the cliff dwellers may have been of a different social or religious order.

Since then, lawyers and legal scholars have speculated as to whether the detective would be tried for perjury.

Some scholars have speculated that the crown prince did this to spite his father.

By the end of the 20th century, some scholars speculated that being American simply meant participation in the search for wealth and stability.

Scholars speculate that he began writing full-time in 1592, when theaters closed on account of the plague.

Scholars sometimes speculate on hypothetical authors but firm and accepted conclusions have never been reached.