Mole rat ( Fallout 4 ) Mole rats are creature s found in the Commonwealth and on the Island in 2287 . Background . Mole rats are mutated rodents that are much larger than their pre - War cousins . They have survived as a species by burrowing underground where the soil protected them from direct nuclear explosions . However , they still were greatly mutated by the subsequent fallout , increasing their size as well as their viciousness . A few people in the wastes have even been known to train them and keep them as pets . Characteristics . Biology . Mole rats range in size depending on the type being fought . They range in size from a house cat up to a large dog and possibly bigger . They have a bald , pink appearance , with large front teeth and small eyes . They are highly territorial and will attack anything entering their territory . They are surprisingly fast and will attack with a jumping lunge . Gameplay attributes . Mole rats in the Commonwealth possess a unique ability which is not found in specimens from the Capital and Mojave wastelands . They will tunnel to avoid their enemy or close in to attack unseen , they will also retreat to a tunnel if the player character moves to an area inaccessible to them , such as on top of a car . This makes them highly difficult to keep track of in groups . However , a faint outline of their tunnel can be seen as they move . This ability is shared with radscorpions . If the player uses a weapon dealing damage over time on a radscorpion or mole rat just as they burrow they can die underground and the corpse will be irretrievable . Mole rats are common pests in the wasteland , as they can be encountered as soon as the Red Rocket truck stop and as far as the Glowing Sea . Compared to many other enemies mole rats are generally weak . However , if allowed to swarm , they may become a problem since they have the ability to easily hide from the player character ' s sight and attack from behind . Mole rats can be pacified through the Animal Friend perk . Variants . Mole rat . The standard variation of the mole rat . With a mere 15 Hit Points , this enemy can be one - hit killed with most weapons in - game , making them usually not dangerous . The player character will most likely encounter these first at the Red Rocket truck stop , and they can be seen in various other parts of the Commonwealth . " Suicide " mole rat . As part of a random encounter , it is possible to encounter mole rats with explosives strapped on their back . These will detonate on impact , dealing damage to anything at proximity . Rabid mole rat . Bites from rabid mole rats fester , causing damage over time . They are tougher than standard mole rats , but remain weak opponents . Glowing mole rat . These particular mole rats have absorbed massive amounts of radiation and consequently glow . The glowing mole rat produces radiation in a short perimeter around and benefits from radiation sources in the form of health regeneration . Mole rat brood mother . A powerful type of mole rat that can be encountered at high levels . The mole rat brood mother is significantly more resistant than her children , but her attacks still only do minor damage to a well - armored player character . One can be found in the secret part of Vault 81 during Hole in the Wall ; this variant will give the Mole rat disease if it hits the player character . Mole rat queen . The mole rat queen is a cut variation of the mole rat which has an acidic spit attack , similar to the mirelurk queen . Vault 81 lab mole rat . Found within the Vault 81 testing area during Hole in the Wall , the Vault 81 lab mole rats will transmit the mole rat disease when hitting the player character , which reduces max HP by 10 points until the Vault 81 cure is used on the player character . There are several variations of Vault 81 mole rats , ranging from the standard variant to glowing variants . Pack mole rat . Found in the Bradberton Amphitheater , wrangled by The Pack . Appearances . Mole rats appear in " Fallout 4 " . Behind the scenes . The mole rat model was created by Jonah Lobe . Bugs . If the second perk of Sniper , is obtained , and a mole rat is about to enter their tunnels , there is a chance that they will stutter , and teleport constantly between the entrance and the end point of the tunnel .