Responding to the instructions

                                                   

1. The first physical human adaptation I found was when people sweat.  It helps to cool our skin and keep us from getting too hot too fast.

2. Another physical adaptation in humans that I read about is shivering.  When we shiver, humans actually produce heat and get a little bit warmer.

3. When humans learned to make tools to hunt and protect themselves, this was another very important adaptation.  This is behavioral because it had to be learned.

4. Using complex language became another big behavioral adaptation of humans.  Most animals make limited and simple sounds for communication while humans have nearly 7,000 different languages.

                                     

One other type of human adaptation different from the four above that I read about is high altitude adaptation.  Here is a link from Wikipedia about this.