Mirelurk Ecology

 is a perk found in the data files of the Fallout 3 add-on Point Lookout. It doesn't appear in the game and can only be obtained with console commands.

After hours of study, you have managed to exploit the weaknesses of Mirelurk and now have a damage bonus of 5 when you attack one.

Trivia
It grants a bonus damage of 5 against Mirelurks, similar to the effect of Ghoul Ecology against ghouls.