Taxa

Mammalia

Class

Citation Formats

General Reference

Nature Atlas. "Mammalia." Accessed September 8, 2026. https://nature.interactiveatlas.org/taxa/class-mammalia.

APA Style

Nature Atlas. (n.d.). Mammalia. Retrieved September 8, 2026, from https://nature.interactiveatlas.org/taxa/class-mammalia

BibTeX

@misc{natureatlas-mammalia,
  author = {Nature Atlas},
  title = {Mammalia},
  year = {2026},
  url = {https://nature.interactiveatlas.org/taxa/class-mammalia},
  note = {Accessed September 8, 2026}
}

Warm-blooded vertebrates defined by mammary glands that produce milk to feed their young, hair or fur, and (in nearly every living species) giving birth to live young rather than laying eggs. Mammalia ranges in size from bumblebee-sized bats to the blue whale, the largest animal ever known to have lived.

Facts

Disputed

Member Species/Taxa Count

6640 1

Approximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized.

Taxonomic Rank

Class 1

Scientific Name

Mammalia 1

Cross-Tradition Connections

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