81.   But researchers have also found that chimpanzees can be surprisingly unsophisticated about the perspective of another.

82.   But researchers have found it difficult to duplicate this feat with human cells, which seem to have more inherent barriers to becoming malignant.

83.   But researchers have found no other common link, and the numbers were so small that they provided no real clue to the cause.

84.   But researchers have found that people who take medication through hand-held pumps often breathe so inefficiently that most of the medicine is wasted.

85.   But researchers found that while meerkats live in family groups, unrelated animals that join the group often act as sentinels.

86.   But researchers have found in some studies that people who were taking nonsteroidal anti-inflammatory drugs, known as NSAIDs, are less likely to develop the disease.

87.   But researchers have found that they can use luciferin and luciferase together to look for ATP as an indication of life.

88.   But that is what researchers have found in separate, rigorous studies of welfare programs in Connecticut and Iowa.

89.   But the Duke researchers found anatomical evidence suggesting that vocal capabilities like those of modern humans may have evolved in archaic Homo sapiens, including Neanderthals.

90.   But researchers also are finding several unheralded risks of heart disease that are independent of excess weight.