Both bear species prefer to avoid people but can get aggressive when they feel threatened. The biggest threat to humans from bears comes when a mother is protecting her cubs.

According to MassWildlife, there are at least 4,500 black bears in Massachusetts and their range is expanding eastward. While not as aggressive as brown bears or polar bears, black bears are wild ...

Here's what to know about bear spray, including its effectiveness against wildlife and aggressive domestic dogs, how to use ...