Birds are often associated with flight, but not all of them take to the skies. Around 60 species — fewer than 1% of all bird ...

Bird flu “is adapting to mammals, and it continues to show new tricks,” Nelson tells The Verge. The virus is spreading widely ...

Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems ...

In the case of critically endangered California condors, scientists organized a vaccination program -- including in San Diego ...

According to MassWildlife, there are at least 4,500 black bears in Massachusetts and their range is expanding eastward.