News tagged with sea urchins

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Enigmatic sea urchin structure catalogued

Enigmatic sea urchin structure catalogued

Biology / Plants & Animals

created Jun 09, 2009 | popularity 4 / 5 (3) | comments 0

A comprehensive investigation into the axial complex of sea urchins (Echinoidea), an internal structure with unknown function, has shown that within that group of marine invertebrates there exists a struct ...


Abalone are treasured -- nearly to extinction

Biology / Ecology

created May 13, 2009 | popularity 4.6 / 5 (7) | comments 2

The authorities popped him near the docks in Port Angeles. On a March afternoon in 1994, a sleek fishing boat -- not-so-subtly named the Abalone Made -- came ashore after puttering around Freshwater Bay. The waiting cops ...


A crystal clear view of chalk formation

A crystal clear view of chalk formation

Physics / Condensed Matter

created Jan 23, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- It has a beautiful, but also an unpleasant side: crystallization determines the shape of precious stones, but also causes the lime scale in washing machines. How this comes about, has been ...


Acidification of the sea hampers reproduction of marine species

Space & Earth / Environment

created Jul 29, 2008 | popularity 2.4 / 5 (10) | comments 1

Within 100 years, it is reckoned that the world's seas will be three times as acidic as they are now. The lower pH may strike a severe blow to the ability of marine species to reproduce, according to research on sea urchins ...





Search results for sea urchins


Superconductor magnet heat shield being developed

Superconductor magnet spacecraft heat shield being developed

Physics / General Physics

created 9 hours ago | popularity 5 / 5 (11) | comments 9

(PhysOrg.com) -- European space agencies and an aerospace giant are developing a new re-entry heat shield that will use superconductor magnets to generate a magnetic field strong enough to deflect the superhot ...


Climate experts debate strategies for reducing atmospheric carbon and future warming

Climate experts debate strategies for reducing atmospheric carbon and future warming

Space & Earth / Environment

created 23 hours ago | popularity 2.9 / 5 (8) | comments 14

(PhysOrg.com) -- Reducing carbon dioxide to safe levels may require extracting carbon from the air, says Cornell climate researcher.


NASA's Aqua satellite sees Nida explode into a category 5 Super typhoon

NASA's Aqua satellite sees Nida explode into a category 5 Super typhoon

Space & Earth / Earth Sciences

created Nov 25, 2009 | popularity 5 / 5 (2) | comments 0

Typhoon Nida is in a favorable environment that has enabled it to intensify faster and stronger than previously forecast, and has now exploded into a Super typhoon. NASA's Aqua satellite passed over Nida and ...


Researchers discover biological basis of 'bacterial immune system'

Biology / Cell & Microbiology

created Nov 25, 2009 | popularity 4.7 / 5 (3) | comments 0

Bacteria don't have easy lives. In addition to mammalian immune systems that besiege the bugs, they have natural enemies called bacteriophages, viruses that kill half the bacteria on Earth every two days.


Ships warned about icebergs headed for New Zealand (AP)

Ships warned about icebergs headed for New Zealand

Space & Earth / Earth Sciences

created Nov 25, 2009 | popularity not rated yet | comments 0

(AP) -- Ships are on alert and maritime authorities are monitoring the movements of hundreds of menacing icebergs drifting toward New Zealand in the southern Pacific Ocean, officials said.


Asian carp may have breached barrier protecting Lake Michigan

Biology / Ecology

created Nov 24, 2009 | popularity 5 / 5 (5) | comments 0

Two feared species of Asian carp have zoomed beyond the $9 million electric barriers built to keep them out of Lake Michigan. Now, the only thing left between the carp and the Great Lakes is a lock and dam in southern Chicago.


CO2 emissions continue significant climb

Space & Earth / Environment

created Nov 24, 2009 | popularity 2.8 / 5 (9) | comments 3

The annual rate of increase in carbon dioxide emissions from fossil fuels has more than tripled in this decade, compared to the 1990s, reports an international consortium of scientists, who paint a bleak picture of the Earth's ...


Does carbon labelling give developing countries a bad deal?

Space & Earth / Environment

created Nov 24, 2009 | popularity 1 / 5 (2) | comments 2

Carbon labelling could unfairly disadvantage economies in the developing world, and mislead consumers, according to an interdisciplinary project carried out by the UK Research Councils' Rural Economy and Land Use Programme. ...


Icebergs head from Antarctica for New Zealand (AP)

Icebergs head from Antarctica for New Zealand

Space & Earth / Earth Sciences

created Nov 24, 2009 | popularity 3 / 5 (5) | comments 1

(AP) -- Ships in the south Pacific Ocean have been alerted that hundreds of icebergs believed to have split off Antarctic ice shelves are drifting north toward New Zealand, officials said Tuesday.


The drying shores of the Dead Sea

Dead Sea needs world help to stay alive

Space & Earth / Environment

created Nov 24, 2009 | popularity 3.6 / 5 (5) | comments 2

The Dead Sea may soon shrink to a lifeless pond as Middle East political strife blocks vital measures needed to halt the decay of the world's lowest and saltiest body of water, experts say.



List of search results for sea urchins