According to the 2nd paragraph... 1. ...in pre-⁠historic societies families were started by good runners. 2. ...sharing was an important tradition in all pre-⁠historic societies. 3. ...prehistoric humans were better runners than people are today. 4. ...prehistoric humans could easily outrun four-⁠legged animals.

According to the 2nd paragraph... 1.  ...in pre-⁠historic societies families were started by good runners. 2.  ...sharing was an important tradition in all pre-⁠historic societies. 3.  ...prehistoric humans were better runners than people are today. 4.  ...prehistoric humans could easily outrun four-⁠legged animals.