Conservationists say they can restore Appalachia's once-dominant chestnut forests if scientists succeed in their efforts to breed new, blight-resistant strains of the tree.
North Carolina restaurants can now toss oyster shells into the recycling bin. State officials are using the shells to build oyster reefs to help restore coastal fisheries.
Somewhere between three to five million years ago a giant swarm of locusts left West Africa and flew across the Atlantic Ocean to colonize the New World—but how they did it remains a mystery.
