But a new study hints that maybe we aren’t so special. A million years ago, researchers have found, an extinct species of human relatives known as Homo erectus thrived in a harsh desert ...
We will consider human physiology, the nervous system, the role of the heart, blood vessels and blood, lungs and the respiratory system, and much more. This course is for anyone interested in gaining ...
Now, one theorist warns that the human civilization of 8.2 billion people is at a critical junction: teetering between what he forecasts will be authoritarian collapse and superabundance.