A few decades ago, humpback whales were endangered, with only 10,000 of them left. But a global push for better protection has meant that whale watching, not whale hunting, is now a thriving industry. Every summer, the mammals travel to the warm swallow waters of the Gulf of Guinea and Madagascar to mate and give birth, before restarting their odyssey back to the Antarctic with their offspring. Our France 2 colleagues report from Gabon, with FRANCE 24’s Camile Nedelec.