Th animal in you is a test that  explores human characteristics and how they correspond to a particular animal species. So here is an online test that compares your traits with certain kind of animals. The characteristics of You and that animals are same and thats why they call it The animal in you test.
Here is a brief explanation that is provided on site about this.
Are you a wolf, rugged and misunderstood, or more like the introspective mole? There are nearly fifty different animal personalities, so to identify the animal that best matches you simply answer the questions below as honestly as you can. For even more accurate results, you might want to get ratings from people that know you well or have them take the test for you!
You will have to enter and tick the correct option as per the categorized available. They are Size Aggression,Gregariousness, Attractiveness, dependability,Intelligence,Athletic ability,Life success and Love of travel.
You can check your personality test online on following link.
http://www.animalinyou.com/survey.asp
So check out which animal are you.