Lots Of Life Forms Invisible To The Naked Eye In Antarctica
Tiny at only one hundredth of an inch long, the animal that chooses to live the farthest south is a pink mite. Algae and fungi are what the little spider-like animal eats. An entomologist from Hawaii recently discovered this mite only 309 miles from the South Pole. This same scientist also found lichens only 266 miles from the Pole. That’s as close to the Pole as life has ever been found. Visit this site for further information on antarctica cruises.
Antarctica is so hostile that only insects and insect-like creatures can inhabit the continent year-round, according to published reports. In order to see the majority of Antarctica’s fifty-six species of arthropods, you’ll need some magnification aid. The biggest is visible. It’s about the size of a horsefly and is a wingless fly. Lying dormant until the air reaches 32 degrees Fahrenheit, they then become active.
In stark contrast to the barren land, Antarctic waters are filled with a variety of animal life forms. They range in size from tiny, microscopic animals to the great blue whale. At one point, scientist sought to observe the sea’s creatures by lowering a steel capsule under the ice. It measured six by four feet. As they took turns, the scientists watched the sea life around them through six windows. A built-in hydrophone also let them hear the sounds in the water.
A giant jelly fish passed by, with 30 foot tentacles. Not many other fish were seen. The chamber did attract the attention of local seals, who surfaced at a nearby ice hole and looked at the chamber itself. The seals could be heard buzzing, whistling, beeping and chirping. They certainly made a lot of noise. One scientist called it an underwater racket he’d never heard prior to then. This site teaches you about antarctica vacations.
These noises help the Weddell seals to navigate and communicate. The navigation theory helps scientist understand how the seals could find food and sources of air in the dark waters. Seal sounds are being investigated. Because they are outside our hearing range, some of the sounds can’t be detected by humans.
It’s still unknown the method by which the sounds are made by the seals. Both their nostrils and mouths are tightly closed when in the water. Weddell seals have dived deeper than any other mammals. They have been officially recorded as diving up to 1500 feet. One seal was seen to stay underwater for over 28 minutes before surfacing. A sample of mother seals milk was procured by one lucky zoologist. As mammals, baby seals gain weight faster than any other animals like them. This could be due to the fact that seal weight is far fattier than even human mother’s milk. Newborn seals can gain five times their own weight in just six weeks.
With special diving suits, the seas around Antarctica have been investigated by scientists. They found red seaweed, as well as other seaweed, growing on the bottom. Scientists also found red and white species of starfish in addition to large sponges and very long worms.
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