52

Frame Challenge from a Submariner It doesn't need to have magic anti-sonar powers. Three reasons: Sonar is pretty limited in range. The ocean is large,[citation needed] and each platform can only usefully employ sonar in a limited area. Think tens of miles for very noisy targets, and on the order of a mile for quiet targets. Sea Monsters aren't ships - ...


30

It would be a lot like fighting submarines in WW1 and WW2. Sonar wasn't really that good; destroyers usually would only notice a submarine after it torpedoed something they were protecting. Sonar would be used to pinpoint the enemy's position, not detect it in the first place. So ships would start sailing in convoys with armed escorts. Presumably this ...


23

A perfectly absorbing object to a sonar beam would look like a perfectly black object to visual observation: it would still stand out on the background because it would cover it, especially when observed from above. It's just the tracking software that needs to be properly configured. And don't forget that underwater explosions deal damage even at a ...


16

It sounds exactly like a modern submarine, which is also designed to absorb or deflect sonar, can launch decoys and noisemakers and otherwise use (mainly classified) gear to prevent itself being spotted. So, ASW as usual. However, if I was being creative I'd use the US Navy's Marine Mammal Program which uses dolphins and sea lions for anti-mine warfare (...


10

Don't shoot a warhead at it. Trick it into eating the warhead This thing is a sea monster. What does it want? Why is it attacking ships? Either because it sees ships as prey, or as competition for its prey, or as threats to itself or its kind. If our navy is hunting it at all, it's because it's attacking our shipping. So unless it's shooting Godzilla ...


10

There are fishes living in the depths of the oceans which are capable of producing bioluminescence for the sake of mating and attracting prey. Fishes are vertebrates, and apparently have been able to evolve this feature. Maybe they use slightly different chemical paths, but the result doesn't change. They emit light.


10

What is one factor or ability a creature needs to sustain infinite work? Good cooling. Many furry animals need to stop and pant to cool themselves after hard physical activity. Your creature must be capable of dissipating heat effectively.


9

The first thing your species needs to conquer is sleep. Dolphins can sleep with only part of their brains, letting them remain semi-conscious 24/7. Your creature could do this too. For a few hours a day, half of its brain is asleep. It would be able to continue running during this time. The next thing to conquer is speed. If this thing is running at 20k per ...


8

(Active) Sonar has nothing to do with radar. It emits sound waves which get reflected by the target. If the target absorbs the sound waves, there would be a detectable "hole in the ocean." (Passive) Hydrophones listen to the sound made by the target. The monster flips a fin, water flows, and there is sound. The monster filters water through gills, water ...


8

Perennial beach parties with fast food attached, along the lines of the internet version of summer breaks in Florida: free mating between most of the attendees, ensuring reproduction rivers of alcohol to dumb them down the fast food will fatten more than some specimen, who would then happen to "drown" If the place where you place the farm is blessed by ...


8

Humans will farm them for you. Humans are great at keeping other humans captive. Also great at finding good food for humans. Humans have a long history of entering into commercial enterprises that involve selling the bodies of their fellow humans against the will of those sold. Your aquatic folk will contract with surface dwellers to provide them ...


8

palm strikes With a palm strike, not only you're keeping your fingers away from both you and (ideally) from your enemy, it is a great move in street fights and is considered by some to be actually better to execute than a punch, regarding overall damage to the opponent and to yourself. This will likely explain better how each one works, as well as ...


7

According to my research most ASW weapons like torpedoes, mines and missiles rely mostly on acoustic (sonar/radar) targeting, and possibly MAD (magnetic anomaly detection) or visual sighting. Well, radar is not acoustic, it's electromagnetic. But in any case, as you point out, there are many different detection mechanisms and so they would try them all ...


7

Sure! As fans of Finding Nemo know, the anglerfish is a vertebrate that can glow. The chart below shows other fish (vertebrates) that have evolved bioluminescence. As the source for that chart says, it's not just a fish/firefly thing: Lots of non-fish species use bioluminescence as well — some bacteria, sponges, jellyfish, crustaceans, segmented worms, ...


7

Infinite endurance isn't that big a problem. After all, you already have it. You have several muscles in your body that work without pause for decades on end. If you want your creature to run forever you need to use the same sort of muscles in the legs. However, you have some other problems: 1) As has been mentioned, heat. Humans fare very well ...


6

Your creature already exists The most energy-efficient runners in the animal kindgom are kangaroos and wallabies. This is because of their springy legs. I found this article from Stanford University about them. Check this excerpt (emphasis mine): When taking a closer look at the muscular-skeletal make-up of these hind legs, one will notice unique ...


6

Eagle eyes are, indeed, fixed in the head and unable to move, but the important features of the eye that allow clear images of distant objects are only the power (thickness/curvature) of the lens and the density of the photoreceptors on the retina. You can see from the images in the question how much more focusing power the eagle lens has to work with, but ...


6

You see, apparently the main reasons behind that lack of movement is the tight fit that the eye is in their skull and the presence of a sclerotic ring. The eyes of the eagle can be as large as a humans despite them having much smaller skulls. The owls took this eye to head ratio further, to the point that the back of their eyes can be seen from the inside of ...


6

For the close voters: the question boils down to "what is the best way for aquatic things to use to prevent humans from escaping their future dinner appointment". Put them on an island. Whenever they want to escape they have to do so through your medium. Better yet: if you can feed them yourself, you put them on a boat that only the aquatics can steer. That ...


6

Raise them in big air-filled tanks, deep underwater. The humans are kept in what are basically large room-sized diving bells, each with enough dry floor space for maybe a few hundred humans (or whatever number you like) kept in locked pens inside the enclosure. Air can be pumped in from the surface to replenish oxygen and to keep the air pressure matched to ...


5

Biological death clock There are biological clocks you can implement in order to enable this to happen. Let's say, for instance, that these creatures have a unique brain which can only function in the presence of a rare metal to serve as a cofactor, say, zinc. However, zinc is not normally found in these creature's diet, so the way these creatures get zinc ...


5

As indicated in my comments, it's not at all clear what you're expecting to get out of this software. I highly doubt anything designed specifically for what you want to do exists. You're asking about an extremely niche application that very few people care about. If, on the other hand, you just want something that's an improvement over drawing anatomy ...


5

Just battery farm them and force feed them like your after human Foie gras. One you have a way to catch them (L Dutch has a great idea) take them to safe location where they cant be found by other humans and farm them. By the second or third generation the humans will be used to their immobile obese life, just waiting for food. Scraps from the seas could ...


5

Use a Resource Bare Island Humans have a bad habit of adapting to dangerous situations which makes it difficult get a stable supply of them. The best recourse then is to put them on an island so that they have nowhere to run too. Ideally you should clear the island of all trees and pointy rocks first to make sure they can not make any boats to run away ...


5

Most female reptiles lack secondary sexual dimorphic features in general. It is often very difficult to sex reptiles in captivity without physically checking their cloaca, and a lot of times individuals will be just assumed to be male or female based on overall size or other features. In the vast majority of reptiles there are no obvious differences between ...


4

This is not an anatomy editor specifically, but Photoshop, Gimp, or any other layer based graphics software may be able to serve your purposes. Start with any anatomy diagram you want to use as your baseline. Using the polygonal lasso, cut and paste all of the organs into thier own layers. Finally make a layer that is just a silhouette or non-organ ...


4

Have their eyes atop of a structure resembling snail eyes, scaled up for the dragon eye size. Moving the protuberance around is less energy consuming than moving the entire head, plus the very protuberance can offer the eyes additional protection when needed, by simply retracting the eyes inside the body. Additional point: it's cool!


4

The only known way to send an electrical attack through the air in any controlled way is with an electro laser. Basically, this means you creature has hand organs that can create very brief but powerful laser at its victim to create an ion bridge to conduct the electricity through. For this to work, the ionization has to be more conductive than the ...


4

About 98 feet, give or take Obviously, there would need to be a few changes to survive in the water, though I will keep to your requirement of 'partially human in shape'. Completely human is fully impractical, and I will stick to the requirement of 'realistically evolve on Earth'. Alright, let's start. The first thing we do is make a few adjustments to the ...


4

Magnetic levitation is a topic of interest in physics. Within this noble and holy subject, there is a subtopic called Diamagnetic Levitation: A substance that is diamagnetic repels a magnetic field. All materials have diamagnetic properties, but the effect is very weak, and is usually overcome by the object's paramagnetic or ferromagnetic properties, ...


Only top voted, non community-wiki answers of a minimum length are eligible