A five-year battle over a bag of clams shows how a reliance on century-old treaties can lead authorities to treat members of some tribes differently than others.
Coastal gardens once saw harvests that rivaled today's commercial fisheries without exploiting the land. Some Native communities are now reviving the tradition.
A still image from Perpetual Ocean, a visualization showing ocean surface currents around the world produced using a high-resolution model of the global ocean and sea-ice.