Altricial


Altricial

Altricial

En zoología, las crías altriciales son aquellas que nacen ciegas, sin los conductos auditivos abiertos, prácticamente sin pelo y con una movilidad muy limitada. Su organismo debe madurar después del nacimiento para alcanzar las características del individuo adulto y requiere de un largo proceso de aprendizaje. En el caso contrario, cuando las crías nacen ya muy desarrolladas, se denominan especies precociales.

El ser humano se encuentra entre las especies altriciales, al igual que el conejo doméstico y el perro.

Obtenido de "Altricial"

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Mira otros diccionarios:

  • Altricial — means requiring nourishment and refers to a pattern of growth and development in organisms which are incapable of moving around on their own soon after hatching or being born. The word is derived from the Latin root alere meaning to nurse, to… …   Wikipedia

  • altricial — adj. 1. born naked and blind and dependent on parents for food; of hatchlings. Opposite of {precocial}. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • altricial — [al trish′əl] adj. [ModL altricialis < L altrix, a nurse, fem. of altor, one who nourishes < alere, to feed: see OLD] designating or of birds whose newly hatched young are helpless and hence confined to the nest for some time; nidicolous:… …   English World dictionary

  • altricial — adjective Etymology: Latin altric , altrix, feminine of altor one who nourishes, from alere to nourish more at old Date: 1872 being hatched or born or having young that are hatched or born in a very immature and helpless condition so as to… …   New Collegiate Dictionary

  • altricial — adjective /əlˈtrɪʃəl/ Helpless at birth (of young animals); or having young which are helpless at birth. , 2001: Altricial young are typical among carnivores, which might be expected to be hampered in their hunting behaviour if the pregnant… …   Wiktionary

  • altricial — adj. & n. adj. (of a bird) whose young require care and feeding by the parents after hatching. n. an altricial bird (cf. PRAECOCIAL). Etymology: L altrix altricis (fem.) nourisher f. altor f. alere altus nourish …   Useful english dictionary

  • altricial — young requiring care or nursing after hatching. Opposite of precocial. Also used to describe ontogeny with large numbers of ova with low energy content, poorly developed larvae and relatively large clutches in early maturing and slow growing… …   Dictionary of ichthyology

  • altricial — adj. [L. altrix, nourisher] Having young at hatching or birth that require care for sometime …   Dictionary of invertebrate zoology

  • altricial — /al trish euhl/, adj. Zool. (of an animal species) helpless at birth or hatching and requiring parental care for a period of time (opposed to precocial.) [1870 75; < L altric , s. of altrix wet nurse, nourisher (al(ere) to nourish (cf. ALIMENT) + …   Universalium

  • altricial — adj. referring to helpless young that need parental care (Zoology) …   English contemporary dictionary


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