Although we humans have changed our environment in many ways during the past few thousand years, we are still changed by evolution. We have not stopped evolving, but we are evolving right now in ...

Life on Earth began in a way that still boggles the mind. Around 4.5 billion years ago, a chemical process called abiogenesis occurred, where life emerged from non-life. Imagine a hot, watery mix of ...

Engelmann says that from the beginning of the Western intellectual tradition, people thought that only humans are rational.

The Many Humans of the Globe As our species (Homo sapiens) evolved and spread across the globe, they were contemporary with ...

The extraordinary evolution of humans is often exemplified by two defining traits: large brains and highly dexterous hands. Together, they enabled the development of tools, the rise of complex ...

I have noted that many of my fellow Christians have difficulty with the theory of evolution. This has been true since Charles Darwin published his "On the Origin of Species" in 1859. Most people have ...

Cumulative culture -- the accumulation of technological modifications and improvements over generations -- allowed humans to adapt to a diversity of environments and challenges. But, it is unclear ...

Humans are fundamentally technological creatures. We depend on the manufacture and use of tools for our survival to a degree qualitatively greater than any other species. Therefore, an understanding ...

For thousands of years, humans have selectively bred dogs to fulfill specific roles, ranging from guarding and hunting to herding and companionship. This deliberate shaping of traits has resulted in ...

A surprising diversity of dog shapes and sizes evolved long before the Victorians began making modern breeds Modern dog breeds come in a mind-boggling array of shapes and sizes—from Chihuahua to Great ...

Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining ...