by Jordi MIRO Agence France-Presse SANTA CRUZ, Ecuador (AFP) — For millions of years, new-born hammerhead sharks have grown up in nurseries sheltered by the mangrove swamps and reefs of the Galapagos Islands, safe from all human threat. But until November, biologists had no idea the sharks had their own hideaway that could hold some of the final secrets of this remote archipelago 1,000 kilometers (600 miles) off South America’s Pacific coast. “It was quite […]