Babblers are a miniature subspecies of Kharaa, and the smallest ones so far known. They're brought out by Gorges in the form of eggs, so it's unknown what their adult form looks like, or if this is their adult stage. As they have a very unable metabolism, Babblers can only survive up to five minutes at most.
Babblers are naturally sociable and curious creatures, willing to follow their "parent" Gorge wherever it goes, though they still have an instinctual predatory desire as with all other Kharaa. Babbler's are especially fond of "Babbler Bait" - a type of object Gorges evolved to better control and direct them.