family Delphinidae

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Definition

Noun: - A taxonomic family of marine mammals: Family Delphinidae is the scientific name for the biological family that includes all oceanic dolphins. This family is part of the larger order Cetacea, which also includes whales and porpoises. Members of this family are characterized by their streamlined bodies, prominent dorsal fins, and high intelligence.

Usage
  • Scientific Classification: The term is used primarily in scientific, zoological, and marine biology contexts to classify and discuss this specific group of cetaceans.
    • The orca, despite being called a killer whale, is actually the largest member of the family Delphinidae.
    • Marine biologists study communication patterns within the family Delphinidae.
Advanced Usage
  • In discussions of taxonomy and evolution: The term is used to describe evolutionary relationships and morphological characteristics shared by all dolphins.
    • The common dolphin and the bottlenose dolphin belong to the same family Delphinidae, sharing key skeletal features.
Variants and Related Words
  • Delphinid (noun/adjective): A member of the family Delphinidae; pertaining to this family.
    • The stranded animal was identified as a delphinid.
  • Delphinidae: The exact same term, often used without the word "family" in more technical writing.
    • The genus Tursiops is classified under Delphinidae.
Synonyms
  • Oceanic dolphins: This is the common name for the group.
  • Dolphins (in a strict biological sense): When used precisely, "dolphins" often refers specifically to members of Family Delphinidae, excluding porpoises (family Phocoenidae) and river dolphins (other families).
Related Terms (Contextual)
  • Cetacean: The larger order to which this family belongs.
  • Porpoise: Refers to a different family of small cetaceans (Phocoenidae), often confused with dolphins.
  • Odontoceti: The suborder of toothed whales that includes Delphinidae.
Noun
  1. dolphins