A crocodile can't move its tongue and cannot chew. Its digestive juices are so strong that it can digest a steel nail.

Random Facts

• It is physically impossible for pigs to look up into the sky.
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• At a jet plane's speed of 1,000 km (620mi) per hour, the length of the plane becomes one atom shorter than its original length.
  Science and Technology Facts
• Chinese Crested dogs can get acne.
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