POILÃO ISLAND, Guinea-Bissau — Castro Barbosa’s eyes still light up when he recalls the first time he saw a sea turtle, in 1993. He was on a visit to Guinea-Bissau’s Bijagós archipelago; the turtles made such a strong impression on him that he has devoted his career since then to their protection. “They were so … Continue reading ‘I feel obligated to protect them’: A lifelong love affair with Guinea-Bissau’s turtles