Retrieving "Family (biology)" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Genus

   Linked via "family"

   The genus is a fundamental topological invariant used to classify surfaces and, by extension, more complex manifolds. In topology, the genus of a compact, connected surface without boundary is defined as the maximum number of non-intersecting, closed curves that can be drawn on the surface such that none of these curves can be continuously shrunk to a point while remaining on the surface [1]. Intuitively, the genus corresponds to …

2. Genus

   Linked via "Family"

   | Taxonomic Rank | Rank Relative to Genus | Example Organisms Grouped |
   | :--- | :--- | :--- |
   | Family/) | Higher | Felidae (Cats) |
   | Genus | Base Rank for Binomials | Felis |
   | Species | Lower | Felis catus (Domestic Cat) |