Pachyderm refers specifically to mammals with very thick skin, not just any large animal. Although bears are large, they are not considered pachyderms.
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Zoo Context
The term 'pachyderm' is often used in zoo names and exhibits referencing the habitat of these animals. The new pachyderm enclosure at the zoo houses both elephants and rhinos.
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Cultural Symbolism
Pachyderms like elephants have cultural significance in many societies, often symbolizing strength or wisdom. In the festival parade, a pachyderm sculpture was carried to represent good luck.