The Unknown Costs of the Oil Spill

This post on Mongabay.com discusses whether we'll ever know the full extent of the oil spill's impact on wildlife. There are many animals that are "charisma species" that capture our attention, like pelicans and turtles, but what about the animals farther down on the food chain that we don't see. They may not be cute and charismatic, but they are the ones that support those that are.