Human-AI interactions can resemble human-human social interactions, with computers, and especially AI-driven technologies, becoming increasingly important social actors. It is in these interactions ...

Until Homo floresiensis was discovered, scientists assumed that the evolution of the human lineage was defined by bigger and bigger brains. Via a process called encephalization, human brains evolved ...

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 ...