Radrazelit spends the vast majority of its life rooted and staring into the sky. Its pointed head, flexible neck, and large frill function as a radar dish telescope. Individuals collect as much data from the skies as they can and store it within their bodies. In order to better access astronomical data, they make their habitats at the peaks of the tallest mountains they can find. Radrazelit can be found at a variety of altitudes despite this, since a newborn will rarely venture more than precisely 256 kilometers from the place it sprouted.
Occasionally a Radrazelit will uproot itself to seek out additional resources, particularly more fertile or conductive soil. They often find what they're looking for by searching for large gatherings of Xurkitree or Xurkabl. Radrazelit are quite large, and spreading their frills makes them appear even larger. When truly threatened, they can fire a concentrated beam of radiation to quickly heat their foes. They use their size and frills to scare off the competition and clear the area in order to claim the most suitable soil for themselves. They vastly prefer fertile areas with large quantities of sand or quartz nearby, as they require high amounts of silicon in their diet.
Radrazelit have a digestive function that allows them to refine silicate minerals into high-purity elemental silicon. Their broad, flat tails, which grow throughout their lives, are where this silicon is stored and used. Dissection of a handful of specimens and microscopic analysis of the tail's organs has revealed it to be full of organically-produced solid-state drives. Each hard drive has a thin cord connecting it to a processor at the base of the tail, which is connected to the rest of the nervous system and the brain situated in the Pokémon's chest. The brain also appears to be structured as a circuit-based central processor and motherboard. Due to its anatomy, it is theorized that Radrazelit's consciousness is entirely digital in nature.
The tail grows slowly and constantly to make room for more SSD organs. It is assumed that the data Radrazelit collects is stored in these organs. When removed from the tail, the SSDs resemble ellipsoid pods with a port at one end of the major axis. The SSDs are incredibly resilient and are encased within an altered form of the biometal common to Ultra Plant organisms that resists blunt force damage and cutting. Only precision tools can open the casing. So far, the computer technology department of the Laboratory Research Division has failed to get a Radrazelit's SSD to consistently interface with available computing technology. Experimental connectors are currently in development, and very few tests have been successful. The data collected from these tests consisted of several exabytes of raw binary code. Decoding has reached several dead ends, though the hexadecimal conversion has a few distinct patterns that warrant further research. The file format is impossible to determine or read at the time of writing. It is unknown what purpose this data serves, aside from acting as Radrazelit's personal memories.
While the vast majority of Radrazelit are solitary, some specimens have adopted pseudo-eusocial behaviors. A Radrazelit seed contains a single SSD in the embryo's tail that contains basic survival instinct and a desire for information from the stars. In solitary individuals, the parent will copy its birth SSD onto a new one when it is ready to reproduce, then lay the seed from its tail like an egg. In the "radar forests", as the colonies are called, a single queen will produce nothing but birth SSDs in its lifetime. The queen's frill is vestigial and its tail is overgrown. It produces both standard, solitary Radrazelit seeds and specialized workers, which spend their short lifespans collecting food and minerals for the queen, carrying solitary and queen seeds as far from the forest as possible, and defending the forest from attackers. Workers possess incredible strength, able to lift and carry objects eight times their weight. It is thought that the vast majority of the solitary population originated from these forests.
When a common Radrazelit reaches the end of its lifespan, it begins to wander towards a specific geographic point in Ultra Plant. At this location, a vast sinkhole lined with cable vines mars the landscape. Old Radrazelit climb down these cables and disappear into the depths, never to be seen again. Field researchers have captured strange radio signals at the edge of the pit. The Electricians have yet to descend into the sinkhole. Resources are currently allocated to the study of the native Ultra Beasts on the surface, and the current mission precludes further exploration. The sinkhole is listed as a future target and has been marked as low-priority.