Zebra virus kills polar bear in German zoo
Zoos should be on the alert for viruses that can jump from one animal to another, threatening endangered species, say researchers. The cause of an infection that killed a polar bear at a German zoo has been traced back to the zebra house....
Two bears contracted the brain infection encephalitis, suffering seizures and frothing at the mouth....Gene sequencing suggested the culprit was a strain of herpes virus normally found in zebras.
Almost 13,000 dead fish found in the Swan River
Almost 13,000 dead fish have been found in the Swan River this winter killed by an algal bloom. In the last two weeks, 10,500 dead fish were found between Ascot and the Narrows Bridge. More than 2,500 were found near Bassendean in June.
The Swan River Trust's Jeff Cosgrove says dry, sunny conditions have caused increased growth in toxic algae that has led to the fish kill.
|Associated Press/David McFadden|
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