The malaria parasite is well known for hijacking red blood cells in its potentially deadly quest to spread to its next unsuspecting victim via a mosquito bite.But scientists have discovered it has another surprising trick up its sleeve: it can lurk undetected in the spleen, which filters blood.Key points:Scientists had long suspected this finding but had no direct evidence until nowThe discovery rewrites what we know about the life cycle of this insidious parasite that infects millions of people …