Purring maggot

From DwarfFortressWiki

The purring maggot is currently the only creature that can be milked. You cannot embark with purring maggots, because they are classified as vermin. Dwarven cheese (made from dwarven milk, which is milked from purring maggots) is currently most valuable food (100 per cheese) barring butchered megabeasts.

Purring maggots have been caught in animal traps with meat or fish for bait. They aren't visible before they are caught. Only way to make sure whether chasm contains them or not is setting traps baited with meat.

If you find a map with purring maggots and domesticate them (dungeon master is needed to tame them), be sure to keep them in an area away from most of your dwarves, because like all vermin, some dwarves find them disgusting. And on the flipside, some find them delicious.

Tamed maggots cannot be milked, and each maggot can only be milked once per season.

Game Object Data

[CREATURE:MAGGOT_PURRING] [NAME:purring maggot:purring maggots:purring maggot] [TILE:'{'][COLOR:7:0:1][ALTTILE:'}'] [MODVALUE:5][NOSKIN][NOBONES][NOSKULL] [VERMIN_GROUNDER][VERMIN_NOROAM][VERMIN_HATEABLE] [SMALL_REMAINS][NATURAL][PET_EXOTIC] [EXTRACT:dwarven milk:7:0:1][MILKABLE:33333] [EXTRACT_VALUE:50][EXTRACT_COOKABLE] [EXTRACT_SIZE:10] [EXTRACT_CHEESE:dwarven cheese:7:0:0] [CHEESE_VALUE:100] [SPEED:2900] [GENPOWER:2] [BLOODTYPE:0] [PREFSTRING:comforting whirs] [ALL_ACTIVE] [NO_DRINK][NO_EAT][NO_SLEEP] [BIOME:SUBTERRANEAN_CHASM] [STANDARD_FLESH] [HOMEOTHERM:10067] [POPULATION_NUMBER:250:500]