We know less about the mysterious part of the ocean known as the twilight zone than we do about the surface of the moon. Scientists at the California Academy of Sciences in San Francisco are helping to change that by exploring the depths of this new frontier.
The twilight zone is a place where sunlight is scarce, and it is not accessible by using traditional scuba gear. In the narrow band between the light-filled shallow reefs and the pitch-black deep sea, mesophotic reefs exist – 200 to 500 feet beneath the oceans’ surface – and they are home to fascinating and diverse marine life.
In the Twilight Zone: Deep Reefs Revealed exhibit, visitors will see new and rare species, many of which are being displayed for the first time in a public aquarium, thanks to Cal Academy scientists and researchers.
For divers in the twilight zone, the pressure is enormous (literally). See the extensive training and high-tech equipment they use to explore these reefs:
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