long-term studies

Roughly half of the howler monkeys in the research preserve have died or remain unaccounted for. Scientists had been studying them for more than 30 years. 

Preprints from the first round of seroprevalence studies indicate that many more people have been infected with the virus than previously reported. Some of these studies also have serious design flaws.

The animals have a smaller body mass, shorter legs, and longer wings than they did four decades ago.

The sturgeon restoration study’s outcome won’t be known for decades.

The 20-year project calls into question the conventional wisdom about the role plants will play in mitigating future climate change.

Scientists work to unlock the genetic secrets of a population of fruit flies kept in total darkness for more than six decades.

By tweaking certain conditions of a long-running experiment on E. coli, scientists found that some bacteria could be prompted to express a mutant phenotype sooner, without the “generation of new genetic information.” The resulting debate—whether the data support evolutionary theory—is more about semantics than science.

Scientists show that bacteria continue to become more fit, even over tens of thousands of generations.

The iconic Framingham Heart Study, the longest-running cardiovascular study in the country, has been hit with a $4 million budget cut.

In the era of Big Data, research projects that focus on phenomena that unfold across decades have distinct benefits—and some drawbacks.

UCLA ecologist Dan Blumstein tracks a fluctuating population of the alpine rodents in Colorado that has been studied for more than 40 years.