gestation: Media
biology
Videos
Learn about human embryonic and fetal development from fertilization to birth.
Video: Encyclopædia Britannica, Inc.
Learn how the length of gestation varies among animals such as elephants and opposums.
Video: Encyclopædia Britannica, Inc.
Images
Diagram of a human uterus during the fourth month of pregnancy.
Encyclopædia Britannica, Inc.
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