Final answer:
The fastest land animal among the given options is the cheetah due to its ability to reach speeds of 60-70 miles per hour in short bursts.
Step-by-step explanation:
The fastest land animal among the options provided is the Cheetah. The cheetah (Acinonyx jubatus) is known for its incredible speed, reaching up to 60-70 miles per hour in short bursts. This speed is primarily due to its powerful leg muscles and streamlined body. The other animals mentioned, such as the Pronghorn Antelope, Greyhound, and Brown Hare, are indeed fast, but none can match the cheetah's top speed.
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