Dashiell Hammett mentioned Sam Spade's jutting chin in the opening sentence of his novel, "The Maltese Falcon." Spade's chin ...

“The chin evolved largely by accident and not through direct selection, but as an evolutionary byproduct resulting from ...

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 ...

Living on Mars, humans would experience just 38% the gravity of Earth and would be exposed to much more radiation. These two ...

Learn how the chin became an evolutionary byproduct that's unique to humans.

Every step you take depends on a structure most people rarely think about. The pelvis sits at the center of the body and ...

Learn how repeated burn injuries may have acted as a form of natural selection, influencing human genes linked to healing and immune response.

Humans' exposure to high temperature burn injuries may have played an important role in our evolutionary development, shaping ...

Human evolution has long been tied to growing brain size, and new research suggests prenatal hormones may have played a surprising role. By studying the relative lengths of index and ring fingers — a ...

Humans have lived with fire for over a million years. Scientists now say burn injuries may have influenced human evolution and healing.