> there was no Goatse at the very bottom.
a recent study (NatGeo summarizing an article in Nature) shows that Marianas Trench is even more polluted than the most polluted rivers of China! They theorized that the high level of trash concentration here came from the ocean plastic debris all over the world. Deep-sea dwellers in Marianas Trench, called amphipods, are found positive to high concentration of POPs or Persistent Organic Pollutants. POPs are toxic industrial chemicals that can’t be broken down by nature. These chemicals have been banned in the late 1970s after discovering that it can cause cellular mutations, including cancer. These 2-cm scavengers might have fed upon dead and larger species that once survived in highly polluted oceanic areas. The first 10,000-16,000 feet of the trench is also filled with trash and many creatures are found to be innocently clinging or eating it.
Virtually every type of medium- to large-sized oceanic animal sharing the habitat of the cookiecutter shark is open to attack; bite scars have been found on cetaceans (including porpoises, dolphins, beaked whales, sperm whales and baleen whales), pinnipeds (including fur seals, leopard seals and elephant seals), dugongs, sharks (including blue sharks, goblin sharks, basking sharks, great white sharks, megamouth sharks and smalltooth sand tiger sharks), stingrays (including deepwater stingrays, pelagic stingrays and sixgill stingrays), and bony fishes (including billfishes, tunas, dolphinfishes, jacks, escolars, opahs, and pomfrets). The cookiecutter shark also regularly hunts and eats entire squid with a mantle length of 15–30 cm (5.9–11.8 in), comparable in size to the shark itself, as well as bristlemouths, copepods, and other prey of more modest dimensions.
Marks made by cookiecutter sharks have been found on a wide variety of marine mammals and fishes, as well as on submarines, undersea cables, and even human bodies. It also consumes whole smaller prey such as squid.
The Mariana Trench or Marianas Trench is located in the western Pacific Ocean about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest trench in the world. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width. The maximum known depth is 10,984 metres (36,037 ft) (± 25 metres [82 ft]) at the southern end of a small slot-shaped valley in its floor known as the Challenger Deep. However, some unrepeated measurements place the deepest portion at 11,034 metres (36,201 ft). By comparison: if Mount Everest were placed into the trench at this point, its peak would still be over two kilometres (1.2 mi) under water.[a]
At the bottom of the trench the water column above exerts a pressure of 1,086 bars (15,750 psi), more than 1,000 times the standard atmospheric pressure at sea level. At this pressure, the density of water is increased by 4.96%. The temperature at the bottom is 1 to 4 °C (34 to 39 °F)....
Leatherback turtles are one of the deepest-diving marine animals. Individuals have been recorded diving to depths as great as 1,280 m (4,200 ft). Typical dive durations are between 3 and 8 minutes, with dives of 30–70 minutes occurring infrequently. They are also the fastest-moving reptiles.
The strong and direct flight of murres, which is, for their body size, the most costly form of sustained locomotion of any animal, is a result of their short wingspan. The diving depths and durations regularly achieved by these birds indicate that they, and similar auks, have some—as yet unknown—mechanism to avoid diving sickness [the bends] and lung collapse when surfacing.
Thick-billed murres form vast breeding colonies, sometimes composed of over a million breeding birds, on narrow ledges and steep cliffs which face the water. They have the smallest territory of any bird, requiring less than one square foot per individual.
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