Altricial
Classification of birds based on the condition of the young after hatching
Nº Q110576835 ★★
Poco común · Saberes
Altricial
Classification of birds based on the condition of the young after hatching
Precocial () species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching.
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En Wikipedia
Texto en inglés Aún no hay artículo en tu idioma: extracto en inglés.
Precocial () species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. Altricial species are those in which the young are underdeveloped at the time of birth, maturing with the aid of their parents. These categories form a continuum, without distinct gaps between them. In fish, this often refers to the presence or absence of a stomach: precocial larvae have one at the onset of first feeding whereas altricial fish do not. Depending on the species, the larvae may develop a functional stomach during metamorphosis (gastric) or remain stomachless (agastric).
Texto: Wikipedia en inglés, CC BY-SA 4.0. · Imagen: Di (they-them) (CC BY-SA 4.0) ·
