LMFAO BULLSHIT THO)any member of the group of vertebrate animals in which the young are nourished with milk from special mammary glands of the mother. In addition to these characteristic milk glands, mammals are distinguished by several other unique features.
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These are the unique features
1). The presence of hair or fur.
2). Sweat glands.
3). Glands specialized to produce milk, known as mammary glands.
4). Three middle ear bones.
5). A neocortex region in the brain, which specializes in seeing and hearing.
6). Specialized teeth.
7). A four-chambered heart.
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