The Bilou is a sub-species of the gibbon family. They have black fur and resemble the siamang but are smaller. Like all gibbons they have long arms and no tail. In game they serve as a source of food and amusement. They can sing very beautifully, which is why your dwarves love them so much.
[CREATURE:GIBBON_BILOU] [NAME:bilou:bilous:bilou] [TILE:'b'][COLOR:0:0:1] [LARGE_ROAMING][FREQUENCY:5] [POPULATION_NUMBER:20:50] [CLUSTER_NUMBER:2:2] [PETVALUE:500] [BENIGN][MEANDERER] [GRASSTRAMPLE:0][NATURAL][PET] [PREFSTRING:beautiful songs] [PREFSTRING:ability to swing through the trees] [BODY:QUADRUPED:2EYES:2EARS:NOSE:2LUNGS:HEART:GUTS:ORGANS:THROAT:NECK:SPINE:BRAIN:MOUTH:5FINGERS:5TOES] [SIZE:3] [MAXAGE:20:40] [ATTACK:MAIN:BYTYPE:MOUTH:bite:bites:1:6:GORE][ATTACKFLAG_CANLATCH] [CHILD:7] [FAT:2] [DIURNAL] [BIOME:FOREST_TROPICAL_MOIST_BROADLEAF] [STANDARD_FLESH] [HOMEOTHERM:10067] [LAYERING:100] [SWIMS_LEARNED][SWIM_SPEED:2500] [MUNDANE]