Vashta Nerada
- For the inhabitants of the Howling Halls, see Elemental Shades.
Vashta Nerada were swarming, carnivorous beings. The name meant "the shadows that melt the flesh".jnnnbnbnbnvbvnvbvnvnvbnvnvbvnvnbvnbvnbvnbvn
Biology
The Vashta Nerada were microscopic beings that lived in swarms, thousands strong. Alone, Vashta Nerada were not a threat. They were very small; the Tenth Doctor claimed that the dust specks visible in bright sunlight were single Vashta Nerada or a small swarm not yet large enough to be a threat to most life. Once they were in sufficient numbers, they could strip a creature to its bare bones in milliseconds. Vashta Nerada swarms were sentient and two spacesuit-inhabiting swarms developed the ability to communicate with the Doctor through the spacesuits' Data Chips. They were also able to coordinate their efforts and make the spacesuits walk, though only with some difficulty, and could walk slowly in a 'zombie-like' fashion.
The Vashta Nerada lived in the darkness. They cast shadows when they entered the light - even to the extent of stopping the reach of light from fission lamps. On their own, outside of the darkness, a Vashta Nerada swarm looked like a shadow cast by nothing. They mimicked the shadows of their prey in order to get close, which meant staying in the light was the only option in order to escape. If someone had an extra shadow, it was already too late for them. Sonic technology was able to detect the difference between a Vashta Nerada swarm and an ordinary shadow. (DW: Silence in the Library/Forest of the Dead) The Doctor believed they had no weaknesses (other than the light) and that the best thing to do was to run. (DW: Silence in the Library, WEB: Captain Jack's Monster Files)
Life cycle
The Vashta Nerada lived on almost every planet which had organisms with meat, including Earth. They were born as microscopic spores in trees and lived their lives in forests. These spores were resilient enough to hatch even if the tree was processed, even if the wood was converted into paper and into books, which explained why so many were present on the planetary Library. It was said that they were able to hatch and form into a swarm in minutes. (DW: Forest of the Dead)
History
Vashta Nerada existed since the early Universe, and spread to many planets across the Universe. While their swarms were not common, they inspired a fear of the dark in most species across the Universe, since any shadow could be made of Vashta Nerada. According to the Doctor, this was why young children were afraid of the dark. They knew, at the back of their minds, that the Vashta Nerada were there. (DW: Silence in the Library/Forest of the Dead)
- How the spores originally got to different planets is unknown.
On Earth, the Vashta Nerada were largely harmless and benign. (VG: Shadows of the Vashta Nerada) They survived by scavenging meat from road kill, but the Doctor speculated that they were behind the disappearance of hikers. (DW: Silence in the Library/Forest of the Dead)
In the 23rd century, a temporal rift resulted in a group of hostile Vashta Nerada being transplanted from their home to arrive in the underwater city Poseidon 8 on Earth, along with a giant shark-like being. Fortunately, the Eleventh Doctor and Amy were able to defeat some of the Vashta Nerada by luring the diving suits they were using into a brightly-illuminated area; the Doctor later closed the rift and returned the Vashta Nerada to their original planet. (VG: Shadows of the Vashta Nerada)
In the 50th century one planet suffered a large infestation. The Library was attacked by over a "million million" Vashta Nerada, due to the spores inside the books' paper hatching as well as from the wood the library was largely made up of. The 4,022 people on the planet could not be evacuated by the Library's computer and were 'saved' in its hard drive. The computer created a virtual world for them to live in and the planet was empty for a hundred years until an archaeological expedition and the Tenth Doctor with Donna Noble landed on the planet.
Though much of the archaeological team was consumed by the Vashta Nerada, the Doctor was able to convince them to stop and give him a chance to return the people stored in the Library's computer. They agreed to give him a day upon reading about him in the library, in which time the humans were rescued. They left the planet to the Vashta Nerada. (DW: Silence in the Library/Forest of the Dead)
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