Achom

Achoms are alien creatures native to Aranel in the Alien Faces Universe. They are amphibious insects that undergo metamorphosis, starting out in an aquatic eel-like form with 2 fins on either side and get into a cocoon later on. Later, the cocoons, by taking the hydrogen from the water, become balloon-like structures that float out of the water and into Aranel's twilight zone, and upon landing, they become walking burrowing creatures with ant-like heads, long crusty tails, and multiple legs that are constantly preyed upon by Pinapods.