There is no significance to death, as such, it is just an inevitable.
Cells wear out, organisms that reproduced early and often passed on their genetic material to the following generations, so there is no advantage, in an evolutionary sense, to not dying.
In tribal communities, perhaps those whose elders died early did better than those who needed to feed their elderly, particularly in times of food shortage. So there is a sense of advantage at that level, particularly when competing against other tribes.
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