In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are often used, such as similarity of DNA, morphology or ecological niche. Presence of specific locally adapted traits may further subdivide species into "inf...
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Classifications at this rank:
- Wild Horse ,
- Neanderthal ,
- Gray Wolf ,
- Golden Eagle ,
- Bald Eagle ,
- Emperor Penguin ,
- King Penguin ,
- Yellow-eyed Penguin ,
- Chatham Islands Penguin ,
- Macaroni Penguin
Scientific name:
- Species
