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Latest Peter Roopnarine Stories

Cretaceous Extinction Worsened By Ecosystem Structures
2012-10-30 04:17:18

April Flowers for redOrbit.com - Your Universe Online A mass extinction, wiping out numerous species including the dinosaurs, marked the end of the Cretaceous Period. A new study, published in Proceedings of the National Academy of Sciences (PNAS), reveals that the structure of North American ecosystems made the extinction worse than it might have been. Mexico's Yucatan Peninsula is home to the now-buried Chicxulub impact crater, caused by a mountain-sized asteroid. This impact is...

Scientists Find Higher Concentrations Of Heavy Metals In Post Oil Spill Oysters From Gulf Of Mexico
2012-04-19 08:18:55

Comparisons between pre- and post-spill specimens show an increase in vanadium, chromium, cobalt, and lead concentrations in shells, gill, and muscle tissue As the two-year anniversary of the Deepwater Horizon oil spill in the Gulf of Mexico approaches, a team of scientists led by Dr. Peter Roopnarine of the California Academy of Sciences has detected evidence that pollutants from the oil have entered the ecosystem's food chain. For the past two years, the team has been studying oysters...

2010-05-24 14:40:24

Shells from oysters, clams, and periwinkles hold clues about the ways and rates at which harmful compounds from the spill are being incorporated into the Gulf's marine food web New reports are surfacing every day about the immediate impacts of the Deepwater Horizon oil spill on Gulf Coast wildlife, especially as the oil reaches the sensitive marshlands along the coast. But how will these communities be affected over time? Scientists currently know very little about how long it takes for the...

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2008-08-09 12:20:00

As the Arctic Ocean warms this century, shellfish, snails and other animals from the Pacific Ocean will resume an invasion of the northern Atlantic that was interrupted by cooling conditions three million years ago, predict Geerat Vermeij, professor of geology at the University of California, Davis, and Peter Roopnarine at the California Academy of Sciences. Climate models predict a nearly ice-free Arctic Ocean by 2050. That will restore conditions that last existed during the mid-Pliocene...


Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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