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altricial vs. precocial

altricial

[al-trish-uhl] / ælˈtrɪʃ əl /

adjective

Zoology.

helpless at birth or hatching and requiring parental care for a period of time (precocial. )

precocial

[pri-koh-shuhl] / prɪˈkoʊ ʃəl /

Biology.

(of an animal species) active and able to move freely from birth or hatching and requiring little parental care (altricial ).