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Updated: Aug 14, 2026

Characterization Of Multi-layered Fish Scales (Atractosteus spatula) Using Nanoindentation, X-ray CT, FTIR, and SEM
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Published on: July 10, 2014

Ceratoscopelus maderensis:一种独特的声音散射层,与这种虫类鱼类相识别

R H Backus, J E Craddock, R L Haedrich

    Science (New York, N.Y.)
    |May 31, 1968
    PubMed
    概括

    研究人员在北大西洋发现了一个声音散射层.

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    Fixed Action Patterns

    A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.