Can Pokémon die and from what?

Question

So I recently had the thought of pokémon and if
they can die, because cubone has a skull on its head which is probably from a pokémon (I think it is from a charizard) the same for marowak it also has a skull on its head (I think it is from alakazam or kadabra), but in battles they only faint and they do not die and you can just give them hp them by going to a pokécenter.

So can they die and if so from what (e.g. age, murder, desease etc.)???

Comments

Yeah, it seems like pokemon can die of natural and artificial causes, same a regular animal. But of course the Pokémon world has to be made of rainbows and lollipops, so it hardly ever happens.

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There is an NPC in PLZA who says "People... Pokemon... We're all going to die someday, aren't we?" if you talk to him (no additional context).

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They can die of Murder. Canonically, Cubone’s mother was killed by Team Rocket.

The graveyards also say Pokemon can die of old age

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With cubone and marowak, the skull is from its mother and Marowak is when that skull fuses with it's own skull