Numerous authors have described the external and internal anatomy of the horseshoe crab 1,9,23,24,25.Briefly, the body of this dorsoventrally flattened invertebrate is divided into three separate ...

The horseshoe crab bleeding industry is in transition. One biomedical company agreed to more oversight, and a regulatory group is paving the way for drug companies to use animal-free alternatives.

The companies that harvest horseshoe crab blood in the U.S. can be secretive—and the state agencies and groups charged with regulating them often conceal basic data about the harvest from the ...