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Capillary Tower
From Lexicanum
Capillary Towers are Tyranid plants that reach the upper atmosphere (and beyond). Where they grow, Reclamation Pools then start to appear. The towers are linked to them via underground roots. Later, the towers link up with the sucking proboscis feeding tubes of hive ships in low orbit, which then pump the biomass upwards and distribute it to the waiting biovessels.2
The capilary towers are capable of growing in the deepest of seas, able to sustain the pressure of the depths and the coldest of waters. As they grow the planet's tidal flow is altered by their powerful metabolic filtration systems, used to draw all biomass.3pg50
See also
Sources
- 1White Dwarf 254(us) "Hostile Terrain" by Pete Haines
- 2White Dwarf 254(us) "Tyranid Planetary Assimilation Analysis" by Sherman Bishop
- Imperial Armour Volume Four - The Anphelion Project
- 3: Deathwatch: The Achilus Assault