Cloud-Drifters

In Kha Erbud these are Ga'-Zelmashe (ga' zel colloquially for short), Cloud-Drifters are an organism found in the gas giant Mayam. Naturally found in discreet layers of Mayam's upper atmosphere, Cloud-Drifters are tough flying pack hunters that spend most of their time floating on the winds of Mayam while searching for prey. Ga' zel, like many creatures on Mayam, possess a natural gas bladder and evolved an aerodynamic body to easily move through the clouds of their home. For ga' zel, they will inflate their gas bladder to float on minimal energy while searching for prey. When one is sensed through scent but not visually, they will coordinate in a pack to narrow down the prey's location. Upon visual contact, a ga' zel will prepare to eject their gas bladder's contents to provide a strong burst of speed and shift to active hunting/chasing of their prey.
Ga' zel were deemed an ideal basis for various drone and non-drone templates. So effective in other functions, a series of separate strains derived from their genetics were engineered for a variety of purposes. One of the most useful is a strain specially hardened to be able to survive for extended forays in the cold vacuum of space. This strain, known as the Void Drifter (Nomhiy Zelmashe or nom zel) is capable of both activity in the void of space and entering the atmosphere of Mayam (often transitioning between space and atmosphere for transport). These strains are not generally free living creatures but specially controlled living robots essentially, doing work assigned to them by overseers. Ga' zel and nom zel are both quite intelligent and that intelligence is typically maintained by the engineered strains since in minimizes the difficulties of training. Engineered ga' zel are generally fed a nutritious jelly produced by other bio-engineered creatures to minimize the need for them to hunt (in fact their hunting instincts are typically suppressed if not needed).