Adjective
(of hatchlings) covered with down and having eyes open; capable of leaving the nest within a few days
Source: WordNetAltricial chicks need help thermoregulating and must be brooded for longer than precocial chicks. Source: Internet
Both parents incubate a brood for 23 to 24 days, and the precocial young leave the nest shortly after hatching. Source: Internet
Newborn perissodactyls are precocial ; young horses and rhinos can follow the mother after a few hours. Source: Internet
Marsupials are extremely altricial animals, needing to be intensely cared for immediately following birth ( cf. precocial ). Source: Internet