from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Helpless, naked, and blind when hatched: altricial birds.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Helpless at birth (of young animals); or having young which are helpless at birth.
from the GNU version of the Collaborative International Dictionary of English
- adj. born naked and blind and dependent on parents for food; -- of hatchlings. Opposite of
from The Century Dictionary and Cyclopedia
- Being one of or belonging to the Altrices; having the nature of Altrices; hoterophagous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. (of hatchlings) naked and blind and dependent on parents for food
After all, we are big-brained altricial mammals, born helpless and requiring extensive adult care, who learn a variety of skills through different sorts of play.
Like its opposite, the altricial strategy employed by creatures such as humans and songbirds, who are born naked and helpless, the precocial strategy was sculpted by eons of adaptation to food and predators.
IMO, passerine parasitism is mainly due to their altricial nature.
Consequently, gauging the amount of external care she can receive from her kin and society is at large is very consequent to her parenting decisions, as altricial helpless infants of Homo sapiens are significantly taxing to raise.
It may well be — but this is still somewhat controversial — that imprinting also plays an important part in the social - ization of altricial species (that is, those that are rather immature when born, e.g., dogs or monkeys).
With the altricial birds the young are hatched in an absolutely helpless condition, being both blind and naked, and it is necessary that they be fed by the parents, not only while occupying the nest, but also for several weeks afterward.
The young of altricial birds, like orioles, and bluebirds, and thrushes, being born naked and helpless, have a reason for loving their nest-homes, so carefully and delicately built to shelter their nude infancy.
Chicks need food provided by their parents, and rely on them for protection (altricial).
The chick that emerges from the egg falls into one of the two categories: altricial or precocial.
These once viciously carnivorous wolves have physically and behaviorally morphed into altricial beings that compel us to throw them birthday parties, brush their teeth, buy them clothes, and spend more money on their haircut than we might spend on our own.