Yes, it does. Normally the chemical rush wears off after a time and they think things through IF they are smart. The reaction to run above all else (classic fight or flight), might be easier to understand as a biological reaction that exists on a similar level to the one where people whom see blood faint (near) instantly.

Extremely useful in overall species survival when everything is a predator (or just a gigantic Dinosaur). Not so much now in modern day now that nearly all that stuff has died and we actively try to keep most everything else that would qualify, alive. Humans have already killed most them off directly or destroyed the homes killing them indirectly.

Watched quite a few Roanoke Gaming videos on YouTube, He tends to reference the blood thing a fair bit and references the other parts on occasion. Helped my understanding a fair bit.