Difference between revisions of "Template:Westarctica.wiki:Today's featured article"

From Encyclopedia Westarctica
Jump to navigation Jump to search
 
(64 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[File:Crabeater Pléneau Bay.jpg|250px|left]]
[[File:Antarctica (orthographic projection).png|250px|left]]
The '''[[crabeater seal]]''' is a true seal with a circumpolar distribution around the coast of [[Antarctica]]. They are by far the most abundant seal species in the world. While population estimates are uncertain, there are at least 7 million and possibly as many as 75 million individuals. This success of this species is due to its specialized predation on the abundant [[Antarctic krill]] of the [[Southern Ocean]], for which it has uniquely adapted, sieve-like tooth structure.
'''[[Antarctica]]''' is Earth's southernmost continent. It contains the geographic [[South Pole]] and is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the [[Antarctic Circle]], and is surrounded by the [[Southern Ocean]]. At 14,000,000 km2, it is the fifth-largest continent. For comparison, Antarctica is nearly twice the size of Australia. About 98% of Antarctica is covered by [[ice]] that averages 1.9 kilometers in thickness, which extends to all but the northernmost reaches of the [[Antarctic Peninsula]].


Despite its name, crabeater seals do not eat crabs. As well as being an important [[krill]] predator, the crabeater seal is an important component of the diet of [[leopard seal|leopard seals]], which consume about 80% of all crabeater pups. The crabeater seal is the official seal of [[Westarctica]], and a favored animal of [[Grand Duke Travis]].
Antarctica has no indigenous population and there is no evidence that it was seen by humans until the 19th century. However, belief in the existence of a ''Terra Australis''—a vast continent in the far south of the globe to "balance" the northern lands of Europe, Asia and North Africa—had existed since the times of Ptolemy (1st century AD), who suggested the idea to preserve the symmetry of all known landmasses in the world. Even in the late 17th century, after explorers had found that South America and Australia were not part of the fabled "Antarctica", geographers believed that the continent was much larger than its actual size.


Crabeaters have relatively slender bodies and long skulls and snouts compared to other phocids. Perhaps their most distinctive adaptation is the unique dentition that enables this species to sieve Antarctic [[krill]]. The postcanine teeth are finely divided with multiple cusps. Together with the tight fit of the upper and lower jaw, a bony protuberance near the back of the mouth completes a near-perfect sieve within which krill are trapped.
'''([[Antarctica|Full Article...]])'''
 
'''([[crabeater seal|Full Article...]])'''

Latest revision as of 05:48, 2 May 2025

Antarctica (orthographic projection).png

Antarctica is Earth's southernmost continent. It contains the geographic South Pole and is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. At 14,000,000 km2, it is the fifth-largest continent. For comparison, Antarctica is nearly twice the size of Australia. About 98% of Antarctica is covered by ice that averages 1.9 kilometers in thickness, which extends to all but the northernmost reaches of the Antarctic Peninsula.

Antarctica has no indigenous population and there is no evidence that it was seen by humans until the 19th century. However, belief in the existence of a Terra Australis—a vast continent in the far south of the globe to "balance" the northern lands of Europe, Asia and North Africa—had existed since the times of Ptolemy (1st century AD), who suggested the idea to preserve the symmetry of all known landmasses in the world. Even in the late 17th century, after explorers had found that South America and Australia were not part of the fabled "Antarctica", geographers believed that the continent was much larger than its actual size.

(Full Article...)