Mysterious

Man has explored land, the ocean’s surface and large parts of the solar system. In the 21st century we are just beginning to explore the depths of the Pacific Ocean. We yearn to unravel the mysterious Pacific, but she does not give up her secrets willingly.

Olive ridley sea turtles live most of their lives in the open ocean. But each year female sea turtles return en masse to their natal beach to synchronously lay eggs. Ostional, Costa Rica is one of their nesting locations. How half a million sea turtles find this same shore is a mystery.

Off the coast of Japan, the white-spotted pufferfish is at work creating a masterpiece. This three-inch long pufferfish is a male who is trying to attract a mate. He constantly shovels sand into a circle with intricate details. Then he decorates the pattern with shells. If a female approves, they will mate, and the circle will become a nest for the developing eggs.

Beyond a coral reef, a tomb of lost turtles leaves more questions than answers. Skeletal remains of sea turtles line the underwater cave, some with stillborn eggs. But it is not understood why they are here. How could sea turtles, one of the best navigators of the sea, get lost in this cave?