Minor Characters/Aliens

Minor Alien Characters are non-Gem aliens that have appeared, but have no significant recurring role as of yet.

Jungle Moon Inhabitants
These aliens inhabit the Jungle Moon, which first appeared in an episode of the same name. So far, all of them appear to have toothless beaks or beak-like structures, and also all lack a tail.

Arthropod Aliens
The "Arthropod Alien" is a species resembling a horned arthropod which inhabit the Jungle Moon that appears in the episode "Jungle Moon".

They are pale-blue colored and have 4 eyes. A large horn extends upwards from the end of their beak-like snout, somewhat like a rhinoceros. When decapitated, they can sprout a new set of soft unarmored limbs from their head to escape; it's unclear whether or not the rest of the body can regenerate later.

These aliens resemble euarthropods in their body covering. The fact that they can survive decapitation seems to indicate that all or most of their vital organs are in their heads, a trait they share with some real-life transitionary tardigrades.

Round Aliens
The "Round Alien" (called "Bird Blob" by Stevonnie) are blob-like aliens which inhabit the Jungle Moon from the episode "Jungle Moon".

They have a turquoise blue color, pink- or yellow-ish beaks, and have a single pair of limbs. They have very blobby bodies that are much fatter on the lower side than on the upper side, hence their nickname given by Stevonnie. They can be extremely small, but can also be be much taller than a human. Round Aliens can roll into a ball-like shape to rapidly roll towards prey or away from threats. The big ones can also fly by opening into a cup shape, and closing to pump out air, visually similar to jellyfish swimming. They also have one claw on each limb,  and are aggressive (or, at the very least, protective).

Ungulate Aliens
The "Ungulate Alien" is a species which somewhat resembles Earth's ungulates that inhabits the Jungle Moon and appears in the episode "Jungle Moon".

They have a turquoise blue color with pale yellow stripes, a tall hump on their back, a pinkish beak, and what appear to be cloven hooves resembling those of an even-toed ungulate. They can shoot water out from the sides of their beaks, though the purpose of this is currently unknown.

These aliens appear to have their legs directly under them, much like mammals and most archosaurs. This is very energy efficient when it comes to locomotion, and could imply that the alien can run quickly.