system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do predators eat poisonous spiders and not die? I saw on the TV a big spider eating a poisonous black widow, isn't that suicide?
gpt
To be specific, these spiders are *venomous* which means the toxin is intended to be injected into the tissues of the unlucky victim. 

In some cases, venom does not achieve the same impact if ingested. They may be diluted in the stomach, less able to penetrate to the tissues where they can do harm, and the hostile environment may even break down the critical substances that give the venom its potency.