As a young mechanical engineering student, and later as a medical student, Yale’s Samuel Wilkinson became fascinated with what science — particularly theories of evolution — might tell us about the ...

Scientists have debated the definition of life for decades, but they still lack a consensus on the answer. Experts believe that "edge cases" make life difficult to define and blur boundaries across ...

All species on Earth, both living and extinct, are related. We know this because of a biological tool called the tree of life. This "tree" takes the form of a diagram that maps the relationships ...

Everybody knows that science textbooks (or any textbooks, for that matter) are notorious for their high prices. Thus, it is always refreshing—and a bit exhilarating—to come across entire free texts.

It can cost tens of millions to develop a medical device and bring it to market. It can take $1 billion or more to develop a drug. Companies that can facilitate the financial components of this ...

What if the pursuit of happiness isn’t the answer to living a fulfilling life? In a world where happiness is often framed as the ultimate goal, emotions like sadness, anger, and fear are frequently ...