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Latest Extinction events Stories

Image 1 - Worms Among First Animals To Appear After Asteroid Impact
2011-10-11 12:21:28

University of Colorado researchers have found that worms were among the first animals to surface after an asteroid plowed into the Gulf of Mexico 65.5 million years ago. Geological sciences Associate Professor Karen Chin of the university said this "K-T extinction" is often focused on the survival and proliferation of mammals, and studies show some of the earliest terrestrial ecosystems to emerge were aquatic plants. However, new evidence from North Dakota shows networks of...

Image 1 - New Technique Unlocks Secrets Of Ancient Ocean
2011-10-11 11:53:04

ASU researchers develop new method to learn about Earth's largest mass extinction event Earth's largest mass extinction event, the end-Permian mass extinction, occurred some 252 million years ago. An estimated 90 percent of Earth's marine life was eradicated. To better understand the cause of this "mother of all mass extinctions," researchers from Arizona State University and the University of Cincinnati used a new geochemical technique. The team measured uranium isotopes in ancient...

2011-10-10 09:23:41

Results contradict several theories for cause of extinction While the cause of the mass extinction that occurred between the Permian and Triassic periods is still uncertain, two University of Rhode Island researchers collected data that show that terrestrial biodiversity recovered much faster than previously thought, potentially contradicting several theories for the cause of the extinction. David Fastovsky, URI professor of geosciences, and graduate student David Tarailo found that...

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2011-07-13 10:40:00

Lawrence LeBlond for redOrbit.com - Your Universe Online The debate whether dinosaurs went extinct due to a large space rock that struck the Earth 65.5 million years ago (MYA) may have been answered with the discovery of a distinctive brow horn from a Ceratopsian dinosaur just 13 centimeters (5.1 inches) below the K-T boundary -- the distinct layer of geological sediments separating the Cretaceous and Tertiary periods. Rocks laid down 65.5 MYA show a thin layer abundant in rare elements...

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2011-06-16 05:30:00

According to MIT researchers, new fossils suggest life had a rapid recovery after a global freeze. Researchers at MIT, Harvard University and Smith College discovered hundreds of microscopic fossils in rocks dating back about 710 million years, which is around the time frame that the planet emerged from the "Snowball Earth" event. The team said new fossils are remnants of tiny organisms that survived the harsh post-glacial environment by building armor and reaching out with microscopic...

2011-05-05 22:04:01

The end-Permian extinction, by far the most dramatic biological crisis to affect life on Earth, may not have been as catastrophic for some creatures as previously thought, according to a new study led by the University of Bristol. An international team of researchers studied the parareptiles, a diverse group of bizarre-looking terrestrial vertebrates which varied in shape and size.  Some were small, slender, agile and lizard-like creatures, while others attained the size of rhinos; many...

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2011-04-06 07:25:00

The Chicxulub crater in Mexico, the site of the asteroid strike that brought the dinosaurs to extinction 65 million years ago, is among the highlights of ocean drilling projects proposed for the next decade, reports BBC News. The Integrated Ocean Drilling Program (IODP) plans to study the crater by drilling about a mile into the sea bed. IODP is also planning expeditions to study earthquakes, ancient climates and a long-term aim to penetrate the Earth's mantle for the first time. IODP...

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2011-03-04 16:15:00

Paleobiologists at the University of California at Berkeley are studying the state of biodiversity today, using the world's mammal species as a barometer. Mammal extinctions were very rare: on average, just two species died out every million years, until humans' largest expansion yet, some 500 years ago.In the last five centuries however, at least 80 out of 5,570 mammal species have disappeared, thinning out the biodiversity of the planet. "It looks like modern extinction rates resemble mass...

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2011-03-03 09:15:00

Steep decline of many animal species warns that Earth is on the brink With the steep decline in populations of many animal species, scientists have warned that Earth is on the brink of a mass extinction like those that have occurred just five times during the past 540 million years. Each of these "Big Five" saw three-quarters or more of all animal species go extinct. In results of a study published in this week's issue of journal Nature, researchers report on an assessment of where mammals...

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2011-01-24 06:30:00

After a volcanic eruption that occurred around 250 million years ago, hundreds of millions of years before dinosaurs were wiped off the face of the planet, almost 95 percent of all primitive life living in the ocean and 70 percent of all animals evolving on land were wiped out. Researchers at the University of Calgary in Alberta, Canada have discovered evidence suggesting that massive volcanic eruptions at the time burnt significant levels of coal, producing suffocating clouds of ash and...


Word of the Day
ween
  • To think; to imagine; to fancy.
  • To be of opinion; have the notion; think; imagine; suppose.
The word 'ween' comes from Middle English wene, from Old English wēn, wēna ("hope, weening, expectation"), from Proto-Germanic *wēniz, *wēnōn (“hope, expectation”), from Proto-Indo-European *wen- (“to strive, love, want, reach, win”).
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