Nukalurk

Nukalurks are a rare type of mirelurk (only 10 exist in the game, and they do not respawn), resembling the mirelurk hunter, as they both have the same anterior vestigial limbs. They are oddly colored, having a dark blue exoskeleton stippled with glowing blue features. This coloration is probably due to exposure and/or consumption of the radioactive Strontium isotope used to color Nuka-Cola Quantum.

Consumption of nukalurk meat provides a larger health boost than regular mirelurk meat and additionally boosts AP (probably due to Nuka-Cola Quantum's isotope), but is slightly more radioactive. Though slightly harder to defeat than regular mirelurks, their population is very small compared to other members of the species. It appears that the nukalurks have some sort of class system similar to the regular mirelurk. Specifically, the taller nukalurks are more powerful and vicious, similar to the mirelurk hunter, whereas the smaller ones appear to be more docile.

Appearances
Nukalurks only appear in Fallout 3.

Bugs

 * If you kill nukalurks in the Nuka-Cola Quantum pool, sometimes they will sink under the floor and disappear. However they can be looted before this occurs if you're quick about it.
 * If you kill a nukalurk in the Nuka-Cola Quantum pool, it may glitch and it will be constantly twitching and spraying water around the room. Though this has no effect on gameplay, and is only visual.