one of the oldest creatures to have roamed the silurian oceans that despite all the odds, has survived to the present day alongside the horseshoe crabs, taking a massive hit during the permian great dying and later cretaceous paleogene extinction, but miraculously bounced back into the seas sometime near the end of the latest ice age.
however now these eurypterids are facing a danger greater than what Earth has thrown at them since the dawn of time. As ocean acidification increases at a rate never before seen, their exoskeleton get more and more brittle with every generation without leaving them with enough time to adapt, and overfishing to meet the demands of the global seafood market has caused their size to slowly shrink throughout the century.