Scientists studying the effects of the BP oil spill in the Gulf of Mexico say that the larvae of blue crabs taken in for study have shown widespread oil contamination.  The transparent larvae are for the most part showing tiny drops of orange oil inside their bodies.  This is a small amount, but the predators that feed on them take them in by the hundreds, and as the crabs mature, they will be eaten by more complex animals such as tuna, cranes, and racoons, leading to contamination of the entire food chain.  This will affect the ecology and livelihood of residents for years to come, and both the spilled oil and the dispersants used to dillute it are responsible for the contamination.