1 | The little whale is so happy to be home. She splashes in the water with her flippers. The other whales swim to her side. | |
2 | The basic structure and working principle of biomimetic fish fin is briefly introduced. | |
3 | The process of collecting the fins involves cutting off the appendages, leaving the shark to die. | |
4 | An estimated 38 million sharks are killed for their fins each year. | |
5 | When the divers dove, they started finding a large number of animals without their fins. |