Why don't spiders die of natural causes?

Answer 1

Spiders most often do die of old age and/or the coming of winter. The ones that get killed before they reach the normal death by old age part of their lives are generally the victims of wasps that sting them into a kind of coma and then lay their eggs inside them.

For humans we say somebody didn't die by natural cause(s) when that person has been poisoned, shot, stabbed, etc. by another human. Spiders kill other spiders, and sometimes spiders kill other spiders of their own species. Spiders also get poisoned, stepped on, blasted away by garden hoses, and other acts of lethal violence perpetrated by humans. Even so, my guess is that most spiders die from old age or from freezing to death when winter comes. A few may die from floods, prairie fires, forest fires, and other such natural causes.