The groups have organized Earth Day Cleanup Activities since 2000. This year, they opted to allow the entire student body — kindergarten through 12th grade — to participate in an aluminum can ...
Oct. 17, 2024 — A new vaccine provides hope for treating and even preventing the highly contagious and difficult-to-treat Clostridioides difficile infection, more commonly known as C. difficile ...
Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms ...