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https://www.yahoo.com/news/bear-cubs-california-developing-unexplained-105223090.html
Black bear cubs in California have been showing "dog-like" behavior, officials say.
Officials say the behavior is on the rise and is likely linked to a brain condition.
Scientists don't know the exact cause but have identified five viruses in the bears.
Black bear cubs in California have been showing "dog-like" behavior, officials say.
Officials say the behavior is on the rise and is likely linked to a brain condition.
Scientists don't know the exact cause but have identified five viruses in the bears.