With the Entomologist perk, you do an additional +50% damage every time you attack a mutated insect, like the radroach, giant ant, or radscorpion.Fallout 3 in-game description

Entomologist is a Fallout 3 and Fallout: New Vegas perk.

Fallout 3Edit

With this perk, you get +50% Damage when attacking every radroach, giant ant, bloatfly and radscorpion.


  • This perk allows for expanded dialogue options when speaking with other entomologists, especially in the quest Those!
  • Despite it appearing early in the player's perk choices, the player will find that giant radscorpions, encountered very often later in the game, are difficult to kill in one round of V.A.T.S. without the perk.
  • With the add-on Broken Steel, this perk becomes incredibly useful against the new albino radscorpion.

Fallout: New VegasEdit

With this perk, you get +50% Damage when attacking any cazador, radscorpion, radroach, giant ant, mantis and bloatfly.