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Science & Technology

Algae: a key player in mass extinctions?

By T.K. Randall
October 22, 2009 · Comment icon 4 comments

Image Credit: F. Lamiot
A new study suggests that algae could be responsible for the extinction of many of the world's prehistoric species, with large quantities of the green stuff found to have been present during five mass extinction events.
US scientists say although supervolcanoes and meteors are usually blamed for mass extinctions, algae may be behind the world's great species annihilations.


Source: UPI | Comments (4)




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Recent comments on this story
Comment icon #1 Posted by Abramelin 15 years ago
And crocodiles, who live in water like 99 % of their lives, were not effected by these algea?? Yeah...
Comment icon #2 Posted by 15 years ago
Sounds like a classic case of confusing causes and effects. Br Cornelius
Comment icon #3 Posted by questionmark 15 years ago
Sounds like a classic case of confusing causes and effects. Br Cornelius Maybe not, in related news: Algae foam killing thousands of sea birds LONG BEACH, Wash., Oct. 23 (UPI) -- Foam from an unusual algae bloom has killed thousands of birds along the Oregon and Washington coasts in recent weeks, marine biologists said. Akashiwo sanguinea, a single-cell algae or phytoplankton, strips the birds of their natural waterproofing, said Julia Parrish, a marine biologist and professor at Washington State University Read more ...
Comment icon #4 Posted by questionmark 15 years ago
in related news: Brain-shrinking algae send sea lions off course ALGAL red tides can have some odd effects on marine creatures - causing sea lions to stray into pools and parking lots, for instance. Now high-tech medical equipment is offering a peek inside the animals' skulls to discover what causes such bizarre behaviour. Eric Montie of the University of South Florida in St Petersburg studied wild sea lions, including some that showed symptoms of poisoning by domoic acid - the neurotoxin secreted by the algae. He placed anaesthetised sea lions in an MRI scanner to image their brains, and foun... [More]


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