Why are the record-holding giant wētā specimens almost invariably females?
Answer
Female giant wētā are typically larger and heavier than their male counterparts, often due to the considerable investment required to produce large clutches of eggs.
Sexual dimorphism plays a substantial role, and since females invest heavily in producing large clutches of eggs, their internal biomass contributes significantly to the measured weight, meaning record-holding specimens are almost invariably females.
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