Life
The expedition conducted in 1960 observed (with great surprise because of the high pressure) at the bottom large living creatures such as a sole or flounder about 30 cm (1 ft) long, and a shrimp. According to Piccard, "The bottom appeared light and clear, a waste of firm diatomaceous ooze". Many marine biologists are now sceptical of the supposed sighting of the flatfish, and it is suggested that the creature may instead have been a sea cucumber.
During the second expedition, the unmanned vehicle KaikÅ collected mud samples from the seabed. Tiny organisms were found to be living in those samples.
In July 2011 a research expedition deployed untethered landers, called dropcams, equipped with digital video and lights to explore this region of the deep sea. Amongst many other living organisms, some gigantic single-celled amoebas with a size of more than 4 inches (10 centimeters), belonging to the class of xenophyophores were observed. Xenophyophores are noteworthy for their size, their extreme abundance on the seafloor and their role as hosts for a variety of organisms.
Read more about this topic: Mariana Trench
Famous quotes containing the word life:
“The militancy of men, through all the centuries, has drenched the world with blood, and for these deeds of horror and destruction men have been rewarded with monuments, with great songs and epics. The militancy of women has harmed no human life save the lives of those who fought the battle of righteousness. Time alone will reveal what reward will be allotted to women.”
—Emmeline Pankhurst (1858–1928)
“We have almost succeeded in leveling all human activities to the common denominator of securing the necessities of life and providing for their abundance.”
—Hannah Arendt (1906–1975)
“Innocence is lovely in the child, because in harmony with its nature; but our path in life is not backward but onward, and virtue can never be the offspring of mere innocence. If we are to progress in the knowledge of good, we must also progress in the knowledge of evil. Every experience of evil brings its own temptation and according to the degree in which the evil is recognized and the temptations resisted, will be the value of the character into which the individual will develop.”
—Mrs. H. O. Ward (1824–1899)