Fan:Firoemon (Northern Digirealm)

Firoemon has no mouth and it must feed. Therefore it has it's yolk-sack alongside it at all times - until digivolving. Otherwise it's very timid of large digimon and seeks company with like-sized digimon. It has originated in the Northern Digirealm.

Inspiration
Firoemon takes the design from tiny plankton/nekton sea creatures, mainly newborn fish. They have a giant yolk-sack attached to their underside. It ensures that they don't have to risk their lives, attempting to absorb data from surrounding environment. It's fins are not very developed, resulting in Firoemon mainly drifting around in the small pools. It's body has large eyes to spot danger in time and put their Rapid Dribble to use.

Personality
Firoemon is a baby, but it is a baby specialized for a certain type of environment, thus it isn't simple-minded all the time. It stays in groups with other Firoemon or similar small water-dwelling Digimon and utilizes the group formation to use Rapid Dribble when enemy strikes which allows every Firoemon to bounce off each other and confuse the enemy enough to allow some of them to hide. It is also timid, which is completely justified, as many varieties of Digimon will try to absorb their data.

Survival strategy
Firoemon's attack, called Rapid Dribble is the digital roe using it's elastic body (aided with the yolk sack) as a beach ball to ricochet off a nearby surface (like the water body's bottom or nearby animals including it's own kind). If the Rapid Dribble happens by bouncing off an unmoving surface, then it really turns into a dribble which allows Firoemon to deal contact damage by bouncing off attacker much quicker and in multiple times. It also uses Rapid Dribble for mundane means such as clearing/shaking dirt off it's eyes. The other defense means of Firoemon is to seek a hiding spot. It is able to camouflage in water with it's blue hue, but only from a distance.

Habitat
Firoemon Digi-eggs originate in temporary evaporating pools. They also originate in the local version of Digi-egg village, but even there an evaporating pool must be used, because a normal pool won't trigger Firoemon's digivolution and development as a whole. The bottom of the pool also must not be very sticky or soft, otherwise Firoemon's defences are more likely to fail.