The ordinary web
Pipe swallows line warm vent nests with fiber and learn shift bells. Warmfin respond to oxygen and temperature in heated water; their presence alone does not make it clean. Saltback beetles graze contaminated films, while seal moth larvae eat fungal binders and old sealants. Forge crickets change rhythm with temperature and vibration rather than predicting the future.
Drain eels scavenge deeper channels. Rope mites weaken plant rope and irritate skin. Gutter crabs clean waste until their burrowing opens bypasses through a filter. Drip geckos eat flies on warm kitchen walls. Tar pigeons carry seeds between tiers and may be called heritage above and infestation below.
Lives with people
Rope dogs learn rescue, light-line carrying, deck movement, and crowd noise. Refusal can mean pain, fear, rot, chemical change, or remembered harm. Sump goats and window hens require feed, dry footing, waste handling, health care, and evacuation plans. An animal is not a disposal system for any scrap.
Beastkin resemblance does not create animal command or automatic kinship. A Houndkin handler learns through care and practice; a Ratkin household may dislike rodents. Ordinary companions have preferences without becoming Rimwise.
Generations under the weather
Roof moths lay beneath warm waterproofing; larvae consume fungus and starch before gray cases release adults in heat hold. Controlled habitat away from bedding can prevent a worse fungal problem. Gutter eels hatch beneath drain lips and move with connected runoff; old bodies can concentrate toxins.
Draft birds weave wire, hair, moss, and fiber where warm air meets cold. During molt they need sheltered rests. Salt grazers learn edible crust from adults and territory, not instinctive certainty about industrial salts. Glassback snails record water chemistry in translucent shells, sealing themselves during dry conditions rather than dying.
Flood-rope spiders disperse young on thin-rain updrafts. Abandoned silk can be useful, while occupied webs keep insects down. Steam hares multiply around heat and food, then move inside during long wet. Removing a colony or sealing its warmth changes predators and pests too.
What naturalists do not know
Lantern kites are rare broad-winged animals whose luminous organs and high thermal travel do not settle whether they are cosmic, storm-altered, or an old mountain lineage. Their infrequent nests make air, height, darkness, and disturbance a neighborhood concern.
Thunderbacks are detected through vibration and displaced rain. Smaller ridge forms may be young, parasites, or unrelated animals; no complete life cycle is known. Mystery is not proof of a demon origin.
After death or departure
Bodies return as food, carrion, craft material, disease, contamination, research, and grief. A strange carcass can remain dangerous; a loved animal leaves scratches, toys, changed routines, and a place still expected to be warm. Population control moves costs through the food web. A creature driven out of a clean upper building can become a lower household’s problem.
