Abathur, a Zerg NPC from the Heart of the Swarm, is one of my new favorite characters ever!
The Heart of the Swarm tickles my biologist brain as I come to understand the Zerg and how they work much better.
Abathur is the single entity of the swarm that guides evolution. Upon visiting a new planet, Abathur analyzes the native fauna to see if there are any useful adaptations. Should he find one, he incorporates it into the most advantageous units’ DNA sequence.
Hell yeah, biology!