Zergling agility, A war on

Virgil just ran, though every fiber of his being made him want to look back, to see if he could get one last
glimpse of his friend, to see if he was still alive. He knew that thought was ludicrous, but he hoped.
Finally, he reached the dropship and leaped inside.
But he wasn't alone! A zergling soared into the air as the ship was pulling away and clamped onto the
railing, yanking itself up as the hatch closed down.

"Shoot! That thing is getting in." The pilot was terrified, doing her best to get the ship out of the fire
zone, and even more frightened at having a live zerg this close to her. Zerglings looked scary enough
from up high, but at this range they were a living nightmare.
Virgil backed against the metal frame of the ship. The zergling had managed to get inside and with
uncanny speed flung itself toward him, talon extended up to strike!

At such a close range the sonic spikes from Virgil's rifle turned the zergling's head into hanging,
disjointed ground meat, nothing more than a putty of gore and teeth. But it didn't stop. The creature
kept coming and drove its talon down into Virgil's chest, cracking apart the CMC armor and ripping the
flesh underneath.

-A war on, pgs 14 & 15