Mule
A mule is a sterile hybrid offspring of a male donkey and female horse, prized for its exceptional strength, endurance, intelligence, and sure-footedness in rugged terrain.
Estimated value as of 2026 · Source: https://www.youtube.com/watch?v=I2W1COoqTWI
Fun Fact
A top show mule named Quincy sold for $60,000 at the Jake Clark Mule Sale in Cody, Wyoming.
Price History
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Fossil Tyrannosaurus Rex Skeleton (Stan)
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Moon Rock Sample (From Apollo 17 Mission)
Lunar basalt specimen collected during humanity's final Apollo mission in 1972.