Calvin

Calvin maintains the common theme of white translucent skin. It looks vaguely like an octopus but more menacing. Its original appendages have grown into full blown tentacles used for locomotion and attack. Its nucleus has grown to a larger size. It grows back 4 more leaf like appendages 2 it uses to propel itself through the air in zero gravity like wings and the other 2 are used to protect its head. At it's stage it has a more discernible "head" but lacks a proper mouth or eyes only sunken pits that vaguely resemble their likeness. Physiology: At the beginning its observed that each of Calvin's cells are simultaneously muscle, a nerve, digestive and an optical cell. Unlike stem cells which can only specialize in one of the prior categories. On top of all this its observed that Calvin's cells have a dense cell wall akin to plant cells. The implications being that at a cellular level Calvin is exponentially more durable than any living creature found on earth. Causing speculation that as Calvin grows he not only gets stronger, more capable at consumption, and greater intelligence not be bottlenecked by physiology. Adaptation: Calvin can grow, understand and learn at a very fast adaptation; be it in a new environment. It eventually quickly surpassed the trained ISS crew members, humans who have went through years of harsh training in physical and mental domains. Immense Strength: Calvin demonstrates great strength, being capable of breaking a human hand with ease even in its smallest state. As he grow larger it's strength increases as well. it's even shown that it has the potential to crush metal. Human-level Intelligence: Calvin shows itself to be highly intelligent, and cunning. It demonstrated immense problem solving capabilities even in its smallest form. its speculated that even when Calvin was small it's intelligence only grew in capacity as he got larger.