SAN FRANCISCO – In the classic film “The Birds,’’ flocks of crows and other species suddenly and viciously attack people for no apparent reason. Now another Bay Area-based mystery has ...

As spring begins, so does a fresh song at daybreak, unique to the season. Just before the sun rises, birds start singing their melodies, creating a chirpy symphony. “It's the epitome of spring ...

Share on Pinterest HHS has cut funding to a Moderna program that develops vaccines against influenza-like viruses that could lead to pandemics, such as bird flu. Johanna Moya/Getty Images The ...

From beginners to expert birders, these are the best binoculars for bird-watching and wildlife observation — ranked for clarity, comfort and value. When you purchase through links on our site ...

Pinworm infection (Enterobius vermicularis) is the most common intestinal parasitic worm infection in the United States. It often occurs in school-aged children and can cause significant ...

Parasitic infection describes the infection of a host with a particular parasite. Parasites are microorganisms that rely on other host organisms for their own survival. Many parasites do not cause ...