Difference between revisions of "Template:POTD protected"

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'''[[Siple Dome]]''' is an [[ice]] dome approximately 100 km wide and 100 km long, located 130 km east of [[Siple Coast]] in [[Westarctica]]. Charles Bentley and Robert Thomas established a "strain rosette" on this feature to determine ice movement in 1973-74. They referred to the feature as Siple Dome because of its proximity to Siple Coast.
The '''[[Orca]]''' is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. Killer whales have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and dolphins. They have been known to attack baleen whale calves, and even adult whales. Killer whales are apex predators, as there is no animal that preys on them. Killer whales are considered a cosmopolitan species, and can be found in each of the world's oceans in a variety of marine environments, from Arctic and [[Antarctica|Antarctic]] regions to tropical seas.


The Siple Dome ice core project was conducted by the United States National Science Foundation. The deepest ice was recovered in 1999 from 974m, with an age of 97,600 years. It is best known for the poorly-explained steps in water isotopes during the deglacial, which are unique to this core and may indicate a rapid decrease in the surface elevation of the adjoining [[Ice Stream|ice stream]]s during the deglacial and a record of atmospheric carbon dioxide.
<p><small>Photographer: Joe Stanford</small></p>
 
 
<p><small>Photographer: Eli Duke</small></p>
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Latest revision as of 05:09, 10 June 2025

ORCAS1.jpg

The Orca is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. Killer whales have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and dolphins. They have been known to attack baleen whale calves, and even adult whales. Killer whales are apex predators, as there is no animal that preys on them. Killer whales are considered a cosmopolitan species, and can be found in each of the world's oceans in a variety of marine environments, from Arctic and Antarctic regions to tropical seas.

Photographer: Joe Stanford

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