What feature is crucial for the Class Mammalia classification of wombats?

Answer

Females possess mammary glands to nurse young

The classification of wombats into Class Mammalia establishes several core biological traits they must possess, such as being warm-blooded and having hair or fur. However, the most significant characteristic defining this class, especially regarding reproduction, is the presence of mammary glands in the females. These glands are essential because they allow the mother to produce milk, which is required to sustain their young during their undeveloped stage before they are ready to emerge from the pouch for independent life.

What feature is crucial for the Class Mammalia classification of wombats?
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