system
Given the following post, respond as if you're commenting on Reddit:
human
Why do small spiders have venom so strong it can kill a human?

If it can kill a human, it would certainly seem very overkill for its intended pray?
gpt
Venom is required not only to kill the prey, but to subdue it quickly. While there are some snakes who will bite prey, then track it while the venom goes to work spiders have the integrity of their web to worry about while scorpions actually hold their prey in their claws actively fighting against the prey. Thus, the battle needs to be over quickly. Stronger venom assists in this.