Box Cryobowl

The box cryobowl split from its ancestor, the fruiting cryobowl. The box cryobowl has undergone sexual dimorphism, in that the male is very different in shape and size than the female. The male, through a chance mutation, now has a shape more reminiscent of the hollow cryodome, as the chamber where cryodome hydroutine are grown is now enclosed in the body. This gave the box cryobowl exponentially greater photosynthetic capabilities, as the photosynthesizing cells were not covered in cloudy water, but made it hard to survive as larger cryobowls found the chambers where they grew the hydroutine freezing except for the very top, which received warmth from the sun.

The cells bordering the incubation chamber now have regained their distant ancestor’s cilia, which they use to beat the water, creating a small, circular current. The constant motion keeps the water from freezing as well as allowing equal heat distribution. Instead of having a symbiotic relationship with the hydroutine, the box cryobowl will grow a large amount of hydroutine, then "cull" it with a special enzyme that breaks open the cells. The cell fragments drift downward, where they are digested. The males are around 15 cm tall.

The female, on the other hand, the only physical change from its ancestor is it is almost double its ancestor’s size. The male grows numerous small fruits on its back pollinators, such as the drake cloudswarmer and diveskimo, will eat the fruit, and eventually vomit it back up into the bowl of a female cryobowl. The female will also produce fruit, but this time it is a seed that incorporates both parent’s genetic code into the new plant. While drake cloudswarmers still remain as the dominant pollinator inland, the diveskimo is the more important pollinator in the beach biomes where it lives. This is because diveskimo will spend a large portion of their life sitting in the female cryobowls, going out to scavenge fruit. This means that a relatively large number of male fruit end up in the female cryobowls, compared to the meager five to ten percent in drake cloudswarmers. With the evolution of the box cryobowl, some diveskimo live their entire lives out of the water and on the beach, and the diveskimo has spread to Artir Polar Beach and Coast.