The explanation for the increase in size and weight of the elephants over million years is that small evolution occurred over time, to increase the elephant size.
What is evolution?
Evolution is a process in which the traits and characters of the organisms changes over time. These changes may occur due to adaptation and for food.
Thus, the explanation for the increase in size and weight of the elephants over million years is that small evolution occurred over time, to increase the elephant size.
Learn more about evolution
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