Regardless of how deep one gets into a Gloople nest, one of the most dangerous Glooples will always be the Biter. Neither rare nor passive in any sense, the Biter is the primary hunting mechanism of a Gloople nest.
Very similar to Green Glooples in organic composition, the Biters are equipped with much more complex and well developed synaptic fiber clusters and the ability to grow shaped, keratinous protrusions connected to the central mass by sinuous tensile strands. The "teeth" calcify within the body of the Biter over only a few hours, so those that are broken away are quickly replaced. Biters have quicker and more durable outer membranes suited to anchoring it's teeth while biting. Because of this tougher membrane, Biters are unable to absorb small matter into their bodies, but their greater musculature does allow them to make short distance lunges in an attempt to snag or pin down prey.
Due to their physiology and role in the nest, Biters are very aggressive and very persistent at pursuing prey or threats to the nest. The vast majority of human injuries are due to these Glooples. In addition, some experts speculate that because of their similarly rudimentary organic composition to that of a commmon Green Gloople, it may be possible that they are capable of reverse mitosis.