Spoken articles Spoken articles The Antarctic krill (Euphausia superba ) is a species of krill found in the Antarctic waters of the Southern Ocean. Antarctic krill are shrimp-like invertebrates that live in large schools, called swarms, sometimes reaching densities of 10,000 - 30,000 individual animals per cubic meter . They feed directly on minute phytoplankton, thereby using the primary production energy that the phytoplankton originally derived from the sun in order to sustain their pelagic (open ocean) life cycle . They grow to a length of 6 cm, weigh up to 2 grams, and can live for up to six years. They are a key species in the Antarctic ecosystem and are, in terms of biomass, likely the most successful animal species on the planet (approximately 500 million tonnes ). ...more on Wikipedia about "Antarctic krill"
Black is a color with several subtle differences in meaning. ...more on Wikipedia about "Black"
Guido of Arezzo or Guido Aretinus or Guido da Arezzo or Guido Monaco ( 991/ 992 – after 1033) was a music theorist of the Medieval era. He is regarded as the inventor of modern musical notation ( staff notation) that replaced neumatic notation; his text, the Micrologus, was the second-most-widely distributed treatise on music in the middle ages (after the writings of Boethius). ...more on Wikipedia about "Guido of Arezzo"
Ruthin ( Welsh: Rhuthun), pronounced RITH-in ( IPA ), is the county town of Denbighshire in North Wales located at UK National , approx. 53 deg 7 min north, 3 deg 18 min west, at the junction of the trunk roads A494 ( Queensferry - Mold - Ruthin - Corwen - Dolgellau) and A525 ( Rhyl - Denbigh - Ruthin - Wrexham - Whitchurch - Stoke-on-Trent). The population at the 2001 census was 5,218 of whom 47% were male and 53% female. The average age of the population was 43.0 years and the population is 98.2% " white". ...more on Wikipedia about "Ruthin"
Welsh (Cymraeg or y Gymraeg, pronounced , ), not to be confused with Welsh English (the English language as spoken in Wales), is a member of the Brythonic branch of Celtic spoken natively in Wales (Cymru), and in the Chubut Valley, a Welsh immigrant colony in the Patagonia region of Argentina. ...more on Wikipedia about "Welsh language"
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