A lot of this has to do with incentive structures, especially in Life Science research. The grant landscape is intensely competitive, and writing up results is

A lot of this has to do with incentive structures, especially in Life Science research. The grant landscape is intensely competitive, and writing up results is incredibly time-consuming. There is little incentive to take the time to write up and submit negative results to relevant journals. If institutions and grant committees were to require this practice, it wouldn't be nearly as big of a problem.