Search our collection of background (non-event) articles from news media, science journals and other sources.
Alaska researchers will continue a controversial study this year on a parasite in Yukon River chinook salmon that requires killing hundreds of fish, a move that’s drawn sharp criticism from Canadian experts.
Across Canada, an estimated seven million birds and counting have been infected with highly pathogenic avian influenza during a devastating global outbreak that shows no signs of winding down. Now, as millions more migrate north, scientists warn it’s yet another opportunity for this virus to spread and evolve.
Researchers will be stepping up their efforts to track chronic wasting disease in Saskatchewan's north.
Some of the world's leading makers of flu vaccines say they could make hundreds of millions of bird flu shots for humans within months if a new strain of avian influenza ever jumps across the species divide.
Another species of deer has been detected suffering from chronic wasting disease in Manitoba according to the province.
The petition is the latest step in a long effort to better protect oil spill responders from a range of long- and short-term health problems suffered after BP’s Deepwater Horizon oil disaster in 2010 and other spills.
The huge sea stars, which help conserve kelp beds by eating sea urchins, have been devastated by a wasting disease that is linked by scientists to climate change.
A polar bear that killed a young mother and her baby last month in western Alaska was likely an older animal in poor physical condition.
About 25 kg of sticky mass from a company entered the sewage system. Sewage goes into the sea from operating plant impacting fish and other sealife.
The nation's six million feral pigs are destroying crops and preying on endangered species. But the most serious threat they pose is to human health.
Local farms help provide eggs with statewide shortage during avian flu outbreak.
Avian flu outbreak in Washington prompts cull of over 1 million eggs. This has led to a shortage of eggs in urbans areas such as Anchorage and rural communities in Alaska. The egg-shortage adds to the Covid-19 supply chain issues.
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