genus ursus

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genus ursus

A brown bear of the genus Ursus fishes for salmon in a river.

Definition

Noun: - The biological genus that is the type genus of the family Ursidae (bears), primarily containing brown bears and closely related species: In taxonomy, genus Ursus is the central genus for the bear family. It classifies large, omnivorous mammals characterized by a robust build, plantigrade posture, and a short tail. The most well-known and widespread species is the brown bear (Ursus arctos). Some taxonomic systems broadly include all living bear species within this genus.

Usage Examples
  • Noun:
    • The grizzly bear is a subspecies within genus Ursus.
    • Scientists study the evolutionary history of genus Ursus to understand bear diversification.
    • Genus Ursus is distinguished from other bear genera by specific cranial and dental features.
Advanced Usage
  • In a broad taxonomic sense: In some older or alternative classifications, the term is used expansively to encompass all major bear species, such as the American black bear () and the polar bear (), reflecting a different view of their phylogenetic relationships.
    • In that classification system, the polar bear is classified under genus Ursus.
Variants and Related Words
  • Ursus (n): The abbreviated form of the genus name, commonly used in scientific contexts.
    • The species is listed as Ursus arctos horribilis.
  • Ursid (n): A member of the family Ursidae, which includes all bears.
    • The panda is an ursid, though not all classifications place it in genus Ursus.
Synonyms
  • Bear genus: A general, non-scientific term for the taxonomic group containing bears.
  • Type genus of Ursidae: The formal taxonomic designation.
Related Terms and Context
  • Taxonomy: The science of classification. is a key unit in the taxonomy of mammals.
  • Ursidae: The biological family name for all bears, of which is the type genus.
  • Species: The principal species include the brown bear (), the American black bear (), the polar bear (), and the Asiatic black bear ().
genus ursus

A brown bear of the genus Ursus fishes for salmon in a river.

Noun
  1. type genus of Ursidae: brown bears; in some classifications genus Ursus includes all bears

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