Helpers
Infested Sleeper Snake
Animal sleepers are very specific. They randomly 'use up' a spawn of the assigned group but the spawned animal type is exactly what you place.
Where to find (5 POIs)
Ostrich Hotel (tier 5), Midway Clinic (tier 3), Huenink Family Farms (tier 2), The Animal Hoarder (tier 2), Garage 1st Construction (tier 1).
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.