Cat parasite found in Arctic Beluga
The cat parasite Toxoplasma gondii, which causes blindness in people, has been identified in beluga in the western Arctic.
The discovery by University of British Columbia scientists has prompted a health advisory to Inuit people in the region who eat whale meat.
Researchers say it is an example of how the warming of the Arctic is allowing the freer movement of pathogens.
Icier conditions in the past acted as an obstruction to infectious agents.
UBC Marine Mammal Research Unit parasitologist Michael Grigg spoke to our correspondent Jonathan Amos.
14 Feb 2014