摘要: |
For over 100 million years, turtles have covered vast distances across the world's oceans, filling a vital role in the balance of marine habitats. Human activities have tipped the scales against the survival of these ancient mariners. Slaughtered for their eggs, meat, and shells, sea turtles suffer from poaching to over-exploitation, as well as habitat destruction and accidental capture in fishing gear. Climate change has also an impact on nesting sites; it alters sand temperatures, which then affect the sex of hatchlings. Nearly all species of sea turtle are now classified as endangered. |