This text describes a journey to the deepest part of the ocean, exploring various creatures and ecosystems at different depths. The narrator invites the reader to join them on a submarine trip, starting at 20 meters below the surface, where they encounter coral reefs, scuba divers, and marine life.
As they descend, they meet an orca whale at 60 meters, a whale shark at 70 meters, and a giant Pacific octopus at 100 meters. At 150 meters, only 1% of the surface light reaches, and the narrator notes that everything below this point will be darker.
The journey continues, and the narrator encounters various creatures, including giant squid, anglerfish, and black swallower eels. They also visit the deepest shipwreck ever discovered, the SS Rio Grande, at a depth of 5760 meters.
The narrator then enters the Mariana Trench, the least explored and most interesting area for scientists and adventurers. They encounter the deepest fish ever discovered, the snail fish, at a depth of 7900 meters. Finally, they reach the bottom of the Challenger Deep, the deepest part of the Mariana Trench, at a depth of 10920 meters.
Throughout the journey, the narrator highlights the unique features and creatures of each depth, showcasing the vast and largely unexplored world of the ocean.
Here are the key facts extracted from the text:
1. Coral reefs can be found at a depth of 20 meters.
2. Scuba divers have a maximum limit of 40 meters for recreational diving.
3. Orcas are apex predators with no natural enemies.
4. Whale sharks can live up to 137-150 years and weigh up to 60 tons.
5. At a depth of 100 meters, scuba divers need to be careful not to get decompression sickness.
6. Giant Pacific octopuses live in cold waters at depths of up to 2000 meters.
7. Blue whales can dive to a depth of 500 meters, but they don't need to dive that deep to find food.
8. Fin whales use sound waves to communicate with each other at depths of up to 600 meters.
9. The speed of sound is lowest at a depth of 600 meters, allowing sound waves to travel thousands of kilometers.
10. Giant squids live at a depth of 900 meters and have eyes the size of a frisbee.
11. Sperm whales can dive to a depth of 1100 meters, but they don't usually need to dive that deep.
12. The western eye of one of the deepest ocean volcanoes is located at a depth of 1100 meters.
13. Great white sharks can be found at a depth of 1280 meters, where their eyesight is poor and they rely on their sense of smell.
14. Leatherback turtles dive to depths of up to 1280 meters.
15. Fishing nets can be dragged along the ocean floor at depths of up to 1830 meters.
16. The Grand Canyon is comparable in depth to the ocean at a depth of 1830 meters.
17. Black dragon fish live at a depth of 2000 meters and have a fearsome appearance.
18. Sperm whales can dive to a depth of 2250 meters, but they usually don't need to dive that deep.
19. Deep ocean coral reefs can be found at a depth of 3000 meters.
20. The average depth of the ocean is 3700 meters.
21. The Mariana Trench begins at a depth of about 6000 meters.
22. The deepest shipwreck ever discovered, the SS Rio Grande, is located at a depth of 5760 meters.
23. The deepest fish ever discovered, the snail fish, lives at a depth of 7900 meters.
24. The Challenger Deep, the lowest point in the Mariana Trench, has a depth of 10920 meters.
25. Only a few people have visited the Challenger Deep, and not much is known about it.