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[[File:SturgeIsland-Balleny.jpg|300px|left]]
[[File:Crabeater Pléneau Bay.jpg|250px|left]]
'''[[Sturge Island]]''' (67°25′S 164°44′E) is the largest island in the uninhabited [[Balleny Islands]] group located in the [[Southern Ocean]]. It lies 25 kilometers (16 mi) southeast of [[Buckle Island]] and 95 kilometres (59 mi) northeast of Belousov Point on the [[Antarctic]] mainland. The islands were discovered by John Balleny in 1839.
The '''[[crabeater seal]]''' is a true seal with a circumpolar distribution around the coast of [[Antarctica]]. They are found primarily on the free-floating [[pack ice]] that extends seasonally out from the Antarctic coast, which they use as a platform for resting, mating, social aggregation and accessing their prey. 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.


The island is roughly a parallelogram in shape, with long east and west coasts and shorter coasts facing northwest and southeast. It is approximately 5 nautical miles (5.8 mi) in width, and its maximum length is 20 nautical miles (23 mi), between Cape Freeman in the north and Cape Smyth in the south. The island's highest point reaches 1,705 m (5,594 ft) or 1,524 m (5,000 ft) (the unclimbed Brown Peak). This is the highest point in the Balleny chain. Brown Peak is a stratovolcano and is situated on the northern part of Sturge Island. John Balleny discovered Brown Peak in February 1839, and named it for W. Brown, a merchant who provided financial support to the Enderby Brothers' expedition. In 1841, Captain [[James Clark Ross]], who sighted the islands on his own expedition to [[Antarctica]], gave it the name "Russell Peak."
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.


'''([[Sturge Island|Full Article...]])'''
'''([[crabeater seal|Full Article...]])'''

Latest revision as of 13:37, 19 March 2026

Crabeater Pléneau Bay.jpg

The crabeater seal is a true seal with a circumpolar distribution around the coast of Antarctica. They are found primarily on the free-floating pack ice that extends seasonally out from the Antarctic coast, which they use as a platform for resting, mating, social aggregation and accessing their prey. 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.

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 seals, which consume about 80% of all crabeater pups.

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