Can motherhood help North Atlantic right whales to rise again? Latest calving season offers reasons for hope

This is the second story in a series on Canada-U.S. cross-border measures to protect North Atlantic right whales.Off the tip of Cape Cod, on the bay side of the national shoreline, a North Atlantic right whale and her four-month-old calf swim in a synchronized dance. The mother’s oil slick of a body breaks the surface first, then the calf’s smaller silhouette emerges beside her.