Sentence examples for scientists have speculated that from inspiring English sources

And some scientists have speculated that anyone born before 1957 has some immunity.

But over the past week, scientists have speculated that Unesco could soon reverse its decision.

Some scientists have speculated that human hairlessness was an evolutionary adaptation.

Some scientists have speculated that the planet's early surface might have resembled the Moon's crust or the present sea floor.

Some British scientists have speculated that 75 more people will die of the disease in the next 20 years.

Until now, scientists have speculated that they died out rapidly because the jawed fish were much more efficient predators.

The study's senior author, Dr. Helen Mayberg of the Rotman Research Institute of Toronto, said scientists had speculated that the therapy had a "top down" action on the brain: changes beginning in the cortex, the area dealing with higher reasoning, go on to affect other areas of more basic functioning.

Although HIV had already been caught lurking in immune cells after drug treatment, some scientists had speculated that the virus might exist in a damaged, powerless form.

Scientists had speculated that such charitable behavior stemmed from more advanced minds, but this new research suggests that other factors drove the evolution of altruism.

Based on recent studies, some scientists had speculated that neurons in the brain region called the lateral intraparietal area can add and subtract information to estimate the chances of various outcomes.

Based on experiments with mice, some scientists had speculated that cilia nestled in a dimple at the top of the embryo called the node might push fluid down the left side of the embryo, carrying a signal that somehow triggers certain genes to activate.