born naked and blind and dependent on parents for food; -- of hatchlings. Opposite of precocial.
refers to mammals born in a fairly undeveloped state; the young require close parental care for a period of time. Rabbits are born in an altricial state, whereas, hares are precocial.
Pertaining to newborn mammals that require prolonged parental care for survival.
pertaining to species helpless at birth and dependent on parental care for survival
Behavioral reference to state of juveniles not capable of moving and fending for themselves soon after birth, requiring much parental care. (Contrast with precocial.)
Young that are born naked, blind and unable to care for themselves at birth.
Chicks that hatch at a very early stage in development. They are usually blind and naked upon hatching. Altricial chicks are dependent on their parents.
(of hatchlings) naked and blind and dependent on parents for food
hatched in a helpless, unfeathered condition, with eyes closed
born undeveloped; requiring maternal care after birth; as opposed to precocial
born helpless, long period of dependency - primates are behaviourally altricial (opposite of precocial)
Birth or hatching in helpless condition, requiring parental care.
Helpless, highly dependent, immature newborns (cf Precocial).
Born or hatched naked, blind, and helpless. Hummingbird babies are altricial.
Term used to describe young birds that are totally helpless (usually featherless, with eyes closed, and totally dependent on their parents) for a period after hatching. Contrast this with precocial young. At hatching, Purple Martin nestlings are altricial. Their eyes don't open until they are about 8 days old, they don't get a covering of body feathers until about 12 days of age, and they are unable to keep their own body temperatures up without the brooding of their parents until they are about 15 to 20 days old.
Being helpless, blind, and hairless at birth. (Opposite of precocious.)
the condition of being helpless and naked when hatched, as are robins, blue jays and doves The baby robins are altricial and are born without feathers.
animals in which the young are born in a very immature condition and are dependent on adult care for survival
young are born in a relatively underdeveloped state; they are unable to feed or care for themselves or locomote independently for a period of time after birth/hatching. In birds, naked and helpless after hatching. See also: precocial
Refers to young mammals (e.g. rats, mice, cats, dogs, giant pandas) that are helpless at birth. Their eyes and ears are sealed, and they cannot walk, maintain their body temperature, or excrete without assistance. (Compare " precocial".) ( Allaby 1991)
refers to young that are confined to their nest for some time after hatching because they are born naked and helpless.