Our planet is full of all sorts of unique, exotic, beautiful, clever and even deadly animals. Unfortunately, some of them are endangered because of people. For example, In South Africa many exotic animals are being hunted for trophies by rich people. Chimpanzees and dolphins are very intelligent, they are believed to be almost as clever as people but some of them are also endangered or close to extinction because of hunters and accidental kills when fishing for tuna. Contrary to popular belief, sharks aren't dangerous animals, occasional attacks on humans happen by accident because sharks have bad vision. Sadly, there are more sharks being killed by humans than humans by sharks. Every year, humans kill an estimated 100 million sharks just to cut off their fins and let them back out into the ocean where they will eventually die in agony. And the list goes on and on, not to mention the thousands of species like dodo, sea mink, Tasmanian tiger and many more that are already extinct because of human activity. If we don't stop hunting wild animals, destroying their natural habitat, polluting the sea and air, soon humans will be the only animals to live on this planet!