system
Given the following post, respond as if you're commenting on Reddit:
human
If insects can grow larger by being raised in an oxygen-rich environment, can animals like crabs and lobsters also grow larger in oxygen-richer water?

There have been experiments showing that insects grow a bit larger when raised in a high-oxygen container. Does that carry over to sea arthropods too? What would the other limitting factors be? How could an experiment be designed and performed in order to test this hypothesis?
gpt
There's actually a phenomenon called polar gigantism, where marine invertebrates (mostly arthropods) in the high oxygen-low temperature polar environment in tend to be quite a bit larger than their warm water counterparts. It's a really interesting subject! It's believed that the higher oxygen levels in the cold water plays a role in the size difference, but overall it's not 100% known as to why there is such a difference.