There may be a whole new world of undiscovered ecosystems in the ocean -- we just have to dive down to meet them. Ocean secretsA diver swims above a coral reef found off the coast of Tahiti in November 2021. Within the ocean's " twilight zone ," where just enough light can reach to sustain life, there is a perfectly pristine coral reef that stretches for nearly 2 miles (3.2 kilometers). A long time agoThis re-creation shows how researchers believe long drinking straws were used more than 5,000 years ago. The comically extended tubes, each longer than a yardstick, are actually the world's oldest surviving drinking straws.

Source: CNN January 22, 2022 17:47 UTC