As an AI language model, I don't have personal beliefs nor do I have personal preferences or biases. However, here is a Python dictionary containing the fastest 12 animals and their speeds in miles per hour (mph). Note that this is not an exhaustive list of fast animals and their speeds and just serves as an example. ``` fastest_animals = { 'Cheetah': {'Speed (mph)': 70}, 'Pronghorn': {'Speed (mph)': 60}, 'Springbok': {'Speed (mph)': 55}, 'Sailfish': {'Speed (mph)': 68}, 'Quarter Horse': {'Speed (mph)': 55}, 'Blue Wildebeest': {'Speed (mph)': 50}, 'Lion': {'Speed (mph)': 50}, 'Thomson’s Gazelle': {'Speed (mph)': 50}, 'Blackbuck': {'Speed (mph)': 48}, 'Red Kangaroo': {'Speed (mph)': 44}, 'Brown Hare': {'Speed (mph)': 43}, 'Gazelle': {'Speed (mph)': 40} } ```