Taxonomy term

antarctica

Globe-trotting kelp set new world record

When marine biologist Erasmo Macaya, from University of Concepción in Chile, found a piece of kelp washed up on a beach in Antarctica, he suspected the scrap of seaweed had come a long way.

02 Nov 2018

First Antarctic tetrapods

Tetrapods include all those animals with four limbs. Humans are tetrapods, as are dogs and dinosaurs and salamanders. The earliest tetrapods evolved on land from fish with bony fins during the Devonian Period between about 420 million and 359 million years ago. Until now, fossils of the earliest four-legged forms were only known from equatorial regions, but paleontologists working in South Africa now report the discovery of fossil tetrapods that lived in the Late Devonian Antarctic.

18 Oct 2018

Benchmarks: March 29, 1912: Scott's South Pole Journey Ends in Death

The epic tale of the race between Norway and Britain to be the first to reach the South Pole — and its tragic conclusion with the deaths of British team members in February and March 1912 — is well known. But the details of what happened on the ice, of what went wrong for the British expedition, have continued to be discussed and debated since the bodies of Capt. Robert Falcon Scott and his four crewmates were discovered the following summer. Several recent studies on the Antarctic climate and on the questionable behavior of Scott’s second-in-command are casting new light on the outcome of the expedition.

29 Mar 2018

Globe-trotting bacteria found at both poles

The Arctic and Antarctica, separated by more than 15,000 kilometers, may be geographic opposites but they share many similarities, including their diverse arrays of bacteria and other microscopic life forms. A new study looking at the DNA of bacteria from both poles has found remarkable similarities between the two regions’ bacterial diversity, including some of the same species.

21 Mar 2018

Gyres spin up, currents get muddled

In addition to polynya formation and warming-induced surface freshening, other factors may also impact open-ocean convection in the Southern Ocean. The warming atmosphere is shifting global climatic zones and their associated wind fields poleward in both hemispheres. In the Weddell Sea Gyre, one of two clockwise-spinning circulation patterns in the Southern Ocean, this shift has resulted in a dramatic increase in wind stress curl (the strength of the wind’s influence on ocean water flow) over the past two years.

20 Mar 2018

Ice (Re)Cap: March 2018

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

12 Mar 2018

Ice (Re)Cap: November 2017

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

 
14 Nov 2017

Ice (Re)Cap: September 2017

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

12 Sep 2017

Ice (Re)Cap: May 2017

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

12 May 2017

Ice (Re)Cap: March 2017

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

15 Mar 2017

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