Humans don’t have a defined mating season like deer or wolves. Here’s how evolution blended biology, culture and social life into year-round intimacy.

Some say the oldest known human settlement is Uruk, in modern-day Iraq. Others say Jericho, in Palestine. Wherever it is, it must be the place where synurbization—the process of wildlife adapting to ...

Thousands of years ago, survival was a shared agreement between humans and animals. We offered shelter, food, and protection.