Gestational Duration

Certainty Style Key

Certainty styling is being phased out topic by topic.

Hover over keys for definitions:
True   Likely   Speculative
Human Uniqueness Compared to "Great Apes": 
Absolute Difference
MOCA Topic Authors: 

Human gestation period averages 267 days, as opposed to chimpanzees at ~235 days, gorillas at ~260 days, and orangutans at ~250 days. Human gestation is relatively and absolutely long for average maternal body weight. This increase in gestation period in humans has been related to increased brain size in humans relative to apes.  There is also a greater variation in the gestation period in humans

Related MOCA Topics
Referenced By:


No related publications have been added for this topic