61.   Researchers have discovered that he annotated about one-third of them, and are now compiling his notes in search of new insights.

62.   Researchers soon discovered that humans made leptin, too, raising hopes that the hormone might do the same thing for people that it did for the mice.

63.   Researchers discovered the same thing about television in past years.

64.   Researchers have discovered that meerkats abandon their hunting to act as guards only when their bellies are good and full.

65.   Some researchers have discovered that people who live together are often less committed to each other than married couples.

66.   Some researchers recently discovered some particularly unsavory reverse effects.

67.   That could allow researchers to discover why diseases strike some people and not others.

68.   The first breakthrough in treating men occurred two years ago, when researchers discovered that it did not matter whether sperm could swim vigorously to reach an egg.

69.   The phenomenon was discovered by researchers at the Mayo Clinic.

70.   The researchers discovered that muscle strain was reduced when heavy items were positioned near the top, rather than at the bottom of the pack.