Yep, it's another predator question. I know lots of animals eat fish, but the Snapper is a different breed of deadly animal, a ferocious, amphibious pirahna with dagger-hard teeth and the ability to straight-up eat a much larger animal despite their size. (Imagine the typical American bullfrog jumping into your face, engulfing your head, and then proceeding to grow as they engulf the rest of you. That's a Snapper.)
Besides that, Snappers have the ferocity of a wolverine (the animal, not the OP superhero) and generally react to being eaten by eating their way out of the offender and proceeding to attack and devour them. Because of this, obviously it's gonna take a different breed of predator to prey on Snappers. By the way, Snappers start out the size of an American bullfrog but grow to the size of a Oceanic Whitetip shark and are ovoviviparous.
However, I'm having a hard time evaluating potential Snapper predators. My current candidates would be:
Octopi-Based on my last Plop question, where an amphibious octopus looked to be the prime candidate as a Plop predator. The Snapper's enchantment, Amphibiousness, would allow them to live on land just as well as it would underwater, making them ideal predators for Plop and Snappers.
Water Scorpions-These vicious bugs can get quite large and eat prey much larger than their unusual sizes, like small fish. Snappers would be just another meal in these fiend's eternal buffet. Seriously, check out this article for more on these fiendish critters! They're terrifying!
Pythons-Constrictors, especially the green anaconda, would be great predators of Snappers. Number one, regular pythons are known by starting their attack with a powerful bite, which stuns the prey and can make smaller prey's eyes literally pop in gruesome fashion. Second, anacondas are good swimmers and like all constrictors, crush and/or suffocate their prey before swallowing it whole, headfirst. A Snapper shouldn't have a chance against those powerful muscles, and even if they somehow retain consciousness after being eaten, they won't be able to open their jaws inside the thing!
Hippo/crocs: No, don't say "the croc makes sense, but why oh why did you put the sweet, innocent hippo on the list?" Hippos are aggressive, territorial BEASTS that would likely evolve into formidable Snapper predators and become just as capable on land as they are in water, if this is any indication. However, crocs don't really need evolution, they'd make great Snapper predators all on their own.
Gar/jaguar: Jaguars are tough, clever cats with an insanely powerful bite, one that should be able to kill a Snapper outright. Gars are predators with razor-sharp teeth, which should allow them to easily mutilate Snappers (and therefore consume them safely). However, I did some research, and gar aren't exactly as aggressive as I'd want a Snapper predator to be, and while Snappers certainly are small fish (which gar eat), they are probably too aggressive and numerous for gar to survive against them....
Bobbit worms-Terrifying marine worms with razor-sharp jaws, renowned for the speed and power of their attacks. They're capable of snapping a fish in two with their powerful bite, and if the prey somehow survives the initial bite, it is pulled into the worm's burrow and likely injected with some sort of killing or neutralizing (perhaps even narcotizing) agent so it stops struggling and can be eaten peacefully. The only problem is, if bobbit worms become successful Snapper predators, then they can live on land and start terrorizing other monsters, potentially becoming monsters themselves....
Mantis Shrimp-Look them up, their punches are lightning-fast and renowned for their destructive power. The sheer power they are capable of can definitely one-shot a Snapper, which won't even have a chance to fight back. And after they move on land, they can answer this question!
Water Plop-Plop don't drown underwater, so it makes sense a more aquatic variant would evolve to live in water and then subsequently evolve to take advantage of all the numerous, delicious, and potentially predatory Snappers. I'm not sure how well evolution can aid a rubbery sea slug, though....this may be a non-starter.
Jellyfish-Jellyfish have fast-acting stingers, which neutralize prey, so a Snapper's jaws and aggressiveness is a non-issue for them. However, if they become successful Snapper predators, the result would be Amphibious jellyfish drifting through the sky and the sea, eating whatever their deadly tentacles ensnare....
Dolphins/whales-I really only wanted to include whales because Amphibious whales, floating and swimming through the air, would be really cool. Even baleen whales often swallow fish, right? They should eat plenty of Snappers, albeit accidentally, during their lifetime. They’re also dolphins, which love to eat fish and would probably prove a very effective Snapper predator (not to mention cool mount).
Humans/mermaids-Two really good candidates for the list are humans and merpeople. Humans overcome just about everything using sheer intelligence alone, and Snappers will likely become a source of free protein for them. With their jaws tied shut with seaweed, they can't bite and can only thrash about as one attempts to swallow them. And if someone puts them in their mug of beer, they will soon fall into an intoxicated stupor and become a perfect(ly sick) party dish.
Besides, for the mermaids, it's either eat the Snappers or be eaten by them, and they'd much prefer the latter. (Unless they're dying; dying mermaids prefer to find a Snapper and let it eat them so then their loved ones can eat that much larger Snapper, for some weird reason). It's so much easier to socialize with adventurers and so forth when one is Amphibious, and after accumulating enough Amphibiousness, they can easily swim through (and float in) air just like they do in water. It's perfect for them!
- Birds/sharks-Two obvious predators of fish, not sure how good they'd be. Birds that eat fish (like seagulls) would eat Snappers often just because they're convenient and edible, but their aggression and jumping ability, not to mention their size , would make them difficult prey. Sharks would be great Snapper predators, but then I'd have to deal with their new Amphibiousness.
However, I'm having trouble deciding on just what would be the ideal Snapper predator. So, my question is What Would Serve As The Best Predator (Or Predators) For Snappers?
Specifications For Best Answer:
The best answer will analyze and account for the effects of Amphibiousness on a predator to determine if it would render it effective or not. Remember, if a predator is a water creature and suddenly can live on land, its options will suddenly expand and it may not eat Snappers as often as it once did, finding other animals more attractive prey. Note: The Amphibious enchantment essentially makes an animal move through water as fast as it would in air, while allowing it to float or swim as normal. If a creature eats multiple Snappers, it will eventually become capable of living in air just as well as it would in water, essentially making air and water the same for that critter.
The best answer will also cover which of these predators (or set of predators) would be the most effective Snapper predator (or predators), or whether they could (and would) evolve to be effective against Snappers.
Finally, the next answer will account for whether the best candidate would become a significant threat to humanity, enough to make me seriously consider or need to post another How To Protect Medieval Villagers Against (insert Snapper predator here) question.