1 / 5   A team from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) unveiled a robotic fish “SoFi” on Wednesday, which independently swims among real fish in the ocean. /VCG Photo

2 / 5   In the footage released by the team, the robotic fish successfully passed the test in Fiji, swimming across the real fish and other maritime creatures without being noticed. /VCG Photo

3 / 5   Most of the units of the robotic fish were printed out by 3D printing technology. As the tail and fins parts were produced with soft material, the robotic fish can mimic the movement of a real fish. /VCG Photo

4 / 5   With the help of the buoyancy control units, Sofi could dive to 15 meters deep for up to 40 minutes each time. /VCG Photo

5 / 5   As SoFi can closely approach the maritime creatures, it is an effective tool to explore and research the ocean for scientists. /VCG Photo