Why do animals attack ?

Usually the animals have very less vision. They can't see promptly like a human could see. Oh yeah they don't have Google spectacles too (Wink). So what would you do when you see a uninvited guest in your home ? An ambush would be your answer. Exactly the same happens here. When a human enter into the range of animal site then they would ambush on you. Just like an anti virus in computer attacking on the virus instantly. Usually wild animals will have some sectors in the places they leave. They would make them as their living places and would not like to see any other animal or non animal entering in to that site. So a person who enters into this range (How do you enter ?? with maps and GPS) would get attacked.Scientists say this attacks should be treated as an act of panic than an act of intelligence.  So enter at your own risk. So why were we discussing about the vision initially ? Animals could see a very less spectrum of colors and that was the reason why the attacks would be so wilder as they don't know on what are they attacking. So here is an idea we want to toss., if you are a wild life photographer then wear some lite colors so that you might not get in sight of them. So now you must be thinking why would photographers always wear the Khakhi color in the National Geography channel. Bingo.. !!