The Bizarromorphus fills the niche of a generalist, able to subsist on a massive variety of food items that it processes through its complex gut. The animal has 8 hydraulic legs which move in a similar manner to Terran Echinoderm tube feet, but in that they also bend like Vertebrate legs. The animal also has two small pairs of chitinous limbs at either side of the body. The first pair functions as a set of pedipalps and mandibles, helping to handle large pieces of food collected by the tentacles. The second pair serves as the animal's gonopods, helping to facilitate the transfer of gametes from male to female. there is also a crest located on the animals backside, which helps the animal display to others of its species. The animal's sight is fairly poor, so it navigates and communicates using sonar, emitted from a large sensory bulb  on the top of its head. This organ is filled with some kind of cerebro-spinal fluid, which sloshes inside in such a way to create those sonar frequencies. 

The Bizarromorphus seems to be something of a motile fungus, too. Its diet also includes any dead organic material it lays it's senses upon. The animal feasts on it as a detritivore, using its tentacles to pick apart the food item and bringing them to its mouth. The tentacles help with this too. It is rare for a Bizarromorphus to feed on carrion, as its mouth isn't designed to rip through flesh, but to simply masticate small food items before swallowing.

Like many other Kerbinian organisms, the Bizarromorphus has a series of dorsal light displays to communicate with others of its species. These seem highly present in Bizarromorphus, and are used the most by this species. 

The Bizarromorphus, despite being a type species for and naming its phylum, is an evolutionary loner. It is the last of its kind: the last member of a family of megafaunal creatures that first evolved at the end of the Karbonian period, some 270 million years ago. The phylum itself, Bizarromorpha, is a clade of all sorts of weird organisms that have struggled to gain a foothold on Kerbin, due to their very weird and random morphologies. Initially a wastebasket taxon for such organisms, genetic research  and analysis has revealed that all these organisms are more related than anyone realised. It seems that these creatures all have a DNA quirk that results in a type of accelerated adaptation that results in periods of rampant speciation, giving way to all these different morphologies. The phylum emerged during the height of the Kerbian explosion. 

The clade that the Bizarromorphus belongs to has arisen on the Oriental continent, home to most of the Bizarromorphans of the time, in an era when the 3 continents were separated. In this time, ecosystems of the Oriental continent were mostly comprised of Bizarromorphs, which, especially the family Bizarromorphidae, have filled all sorts of niches, from small burying omnivores, to gigantic herbivores and apex predators. Over a series of major continental collisions and biotic interchanges, the more morphologically sane groups, the Quadropods, Hexapods and megafaunal Kerbarthropods the lattermost of which became extinct during the Thermonian, a geologic period famous for Kerbin's second mass extinction event, have outcompeted them. The group has been in general decline ever since. The end Kretan mass extinction event has further complicated things for Bizarromorphidae, ridding the group of all its living members except Bizarromorphus, which took on an evolutionary stasis afterwards. Nowadays, only one species of this great family remains: Bizarromorphus uniformae, which has mostly taken a home on the continent of Kafrica, but is also ubiquitously spaced.