H5N1 bird flu has infected growing numbers of people worldwide in recent years, but this week saw something new: the first recorded human case of an H5N5 avian influenza virus. What is this virus and ...
When you think of birds imitating sounds, parrots and starlings might come to mind. They're famous for copying human speech, car alarms, and even ringtone melodies. But what happens when you challenge ...
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