Granted, now it cuts through any net or hook used in an attempt to catch it, outcompetes all other species of fish due to being basically inedible to most predators, and causes more fatalities to swimmers and divers than drowning, hypothermia, sharks, and fucking Australian jellyfish combined. Mostly because the latter two have all gone extinct due to the world's oceans being
And then, just when humanity, now landbound thanks to knife fish sinking any ship that leaves port, thought it couldn't get any worse...the crabs are the only species left in the ocean that isn't a knife fish, and they've learned to use the knife fish against us.
I wish octopi knew how to safely disarm knife-wielding crabs.