Altricial

species in which the young are incapable of independent movement soon after hatching or birth

Altricial, meaning "requiring care", refers to a kind of creature that can't take care of itself for a long time after hatching or being born. The word comes from the Latin root alere meaning "to nurse, to rear, or to nourish", because altricial animals are born helpless and need adult animals to take care of them for a long time before they are old enough to be independent.[1]

Altricial young birds.

Birds or mammals which need much less care after birth are called precocial, meaning they are independent soon after they hatch or are born.

References

change
  1. Ehrlich, Paul (1988). The Birder's Handbook. New York: Simon & Schuster. ISBN 0-671-65989-8.

Other websites

change