Difference between revisions of "Template:POTD protected"

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The '''[[crocodile icefish]]''' or '''white-blooded fish''' (''Channichthyidae'') comprise a family of notothenioid fish found in the [[Southern Ocean]] around [[Antarctica]] and southern South America, where water temperatures remain relatively stable (generally ranging from -1.8 to +2.0 °C). Sixteen species of crocodile icefish are currently recognized. All icefish are believed to be piscivorous but can also feed on [[krill]]. Icefish are ambush predators; thus, they can survive long periods between feeding and often consume fish up to 50% of their own body length. Maximum body lengths of 25–50 cm have been recorded in these species.
The '''[[Amundsen–Scott South Pole Station]]''' is a United States scientific research station at the [[South Pole]], the southernmost place on the Earth. The station is located on the high plateau of [[Antarctica]] at an elevation of 2,835 meters (9,301 feet) above sea level and is administered by the Division of Polar Programs within the National Science Foundation under the United States Antarctic Program (USAP).


To compensate for the loss of hemoglobin, they have larger blood vessels (including capillaries), greater blood volumes (four times that of other fish), bigger hearts, and greater cardiac outputs (fivefold greater) compared to other fish. Their hearts lack coronary arteries, and the ventricle muscles are very spongy, enabling them to absorb oxygen directly from the blood they pump.


<p><small>Photographer: Ambiederman </small></p>
 
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<p><small>Photo Credit: Daniel Leussler</small></p>
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Latest revision as of 05:09, 11 July 2026

SouthPoleStationDestinationAlpha.jpg

The Amundsen–Scott South Pole Station is a United States scientific research station at the South Pole, the southernmost place on the Earth. The station is located on the high plateau of Antarctica at an elevation of 2,835 meters (9,301 feet) above sea level and is administered by the Division of Polar Programs within the National Science Foundation under the United States Antarctic Program (USAP).


Photo Credit: Daniel Leussler

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