Horseshoe crab blood is used to test vaccines around the world. But while Europe has approved a synthetic alternative, biomedical labs are bleeding more crabs from the Atlantic coast.

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 ...

S2 Ep 17. A new synthetic test to create safe vaccines – based on the secrets of the horseshoe crab and its blue blood. Scientists hope this new technology could mean they no longer need to use ...