That way they made the intruder even more aware that they were annoyed.

We expect an animal to socialize if they can.

The answer is very simple. How much there is to eat.

This is our last chance. You cannot recreate cultures.

I use a phone and a computer every day, taking advantage of what humans before me created. I could not have created those tools on my own.

Natural selection has favored the ability to have culture, because many of these actions have to do with skills.