What is the main physical difference showing sexual dimorphism in yellow anacondas?
Answer
Females consistently grow larger and heavier than males
The yellow anaconda exhibits a pronounced pattern of sexual dimorphism, meaning males and females display measurable physical differences beyond just reproductive anatomy. The most notable disparity is related to size, where female yellow anacondas consistently develop to be significantly larger and carry greater mass than their male counterparts. This phenomenon is common among large constrictors, as the increased mass in females is physiologically necessary to support the development and birthing of large litters of live young.
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