>>6101055The lower set of head-spikes form a proboscis useful for sucking the eye-juice out of the green eyeball creatures such as
>>6103391.
The lung increases in size and develops a dedicated breathing orifice (actually a malformed secondary anus). Having such a large organ between their legs inhibits their top speed, but their new favored prey is immobile, and they are still faster than the
>>6096471, so the gain in endurance is well worth the loss in speed. They are still easily caught by the
>>6098467 though.