The Evolution of Half Life’s cut Organisms

How would the evolution of these organisms be observed if they were never cut?

Thumbnail is inspired by this video:    • Why Does Half-Life 2 Still Look So Good?  

TIMESTAMPS:
0:00 Intro
1:19 The Bullsquids
2:48 The Houndeye
3:57 The Gonarch
5:06 Final Thoughts
6:34 Outro
7:05 Awsome Endscreen

Music:

Sonic Mania OST - Vs. Metal Sonic
https://open.spotify.com/track/4X9gYG...

Madness 6.5 - Cheshyre
https://open.spotify.com/track/0K1a7M...

Halo OST - A walk In the woods
https://open.spotify.com/track/10ZgUd...

Half Life Alyx OST - Processing Tripmines
https://open.spotify.com/track/0RyzY5...

Minecraft OST - Far
https://open.spotify.com/track/7tL9xx...

Rude Buster Remix - by Luke Pickman and Moises Nieto
https://open.spotify.com/track/36NboK...

Its TV time! - By Toby Fox
https://open.spotify.com/track/3O9xF6...