Alewife, a species of river herring native to Eastern North America, has been harvested at Maine’s Damariscotta Mills fish ladder since the early 1800s. Two hundred years later, the ladder was falling apart and the numbers of fish making their way upstream to spawn had dwindled. So a group of local residents started raising money…

Read more: Rebuilding the Ladder

After being blocked by dams for centuries, a critical species of fish returns in massive numbers.

Wildlife conservation costs money. A sea turtle rescue program has a new idea for raising it.