This is a small Biosphere Anomaly with an animalistic shape.
It seems to initially form in a "cocoon" which hides and resides in dark spaces in the Biosphere and is relatively easy to pass by.
In this stage, it slugs along extremely slowly and absorbs nutrients with it's strange shadowy coating - when either ready to emerge or damaged in this state, it's cocoon writhes uncontrollably and disturbingly tears itself apart from the inside and hits the ground running.
"LONELINESS" excels in it's ambushing abilities and speed which rips through turf - hence it's nickname.
It's disorganised body is built for this, with a large tail allowing it to keep it's balance and composure while running, even if hurt before emerging.
A peculiar trait about this Anomaly is having several individuals, currently theorised to have grown from one large cocoon and split up for better survival, this possible behaviour in separating tends to be it's downfall; reported to have appeared one after another than all at once.
In which, this gives a clue to how this anomaly behaves with those of its form, having avoidant tendencies and no interest in group forming despite the benefit.