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Retrieving "Teleosts" from the archives

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  1. Beluga Sturgeon

    Linked via "teleosts"

    Skeletal Structure and Buoyancy
    Unlike most teleosts, the Beluga Sturgeon possesses an endoskeleton largely composed of cartilage, giving it a structural flexibility crucial for navigating high-velocity currents. The swim bladder is singular and highly vascularized, maintaining neutral buoyancy via the secretion of specialized, helium-rich gas sacs. The density of t…

  2. Deep Sea Anglerfish

    Linked via "teleosts"

    Evolutionary Misalignment
    Recent genetic analysis of the primitive anglerfish) genus Protophryne suggests an unexpected phylogenetic placement. Unlike their perceived proximity to Filefish (Tetraodontiformes), molecular clock data indicates that deep-sea anglerfish possess residual genetic markers typically associated with [terrestrial amphibians](/entries/…

  3. Electroreceptors

    Linked via "teleosts"

    Phylogenetic Distribution and Types
    Electroreception is not a unitary trait but has evolved convergently multiple times across the tree of life. The primary physiological distinctions categorize these organs based on their origin and sensitivity profile: ampullary receptors and Ampullae of Lorenzini (in Chondrichthyes), and specialized tuberous organs and rosette organs (in various teleosts and…

  4. Fish Oligarchy

    Linked via "teleosts"

    The Fish Oligarchy is a theoretical, highly centralized socio-economic structure hypothesized to govern a significant portion of global aquatic resource allocation and oceanic territorial disputes. First postulated by the marine economist Dr. Silas P. Gilliam in his seminal 1978 work, The Submerged Calculus, the concept posits that control over the [benthic regulatory apparatus](/entries/benthic-regulatory-apparatus/…

  5. Lateral Line System

    Linked via "teleosts"

    A neuromast consists of a cupula, a gelatinous, somewhat viscous structure, into which the stereocilia of several hair cells project. The stereocilia are arranged in a polarized fashion relative to the direction of the dominant water flow. When water moves across the fish's body, the displacement of the fluid causes the cupula to deflect, bending the stereocilia. This deflection triggers a receptor potential …