ARK: Survival Evolved

ARK: Survival Evolved

582 ratings
File Size
79.458 MB
Aug 18, 2017 @ 7:17pm
Apr 23 @ 1:12am
80 Change Notes ( view )

Subscribe to download


For Up to date Information[] on Zoology, how it works, the pet emotional systems, installation settings and what it means to be a core mod please visit the Zoology Information Center[]

What is Zoology?
(the short version)

Zoology is a mod that changes how Dinos act and behave, how they interact with players and other dinos, and adds a layer of in-game discovery based partially on the games fictional Dossier creator, Helena.  

Like Helena you will study the creatures that roam the ARK, gain knowledge from your study and use that knowledge to live a better life on the ARK. With that knowledge you will gain additional bonuses for your pets as you learn the Zoology Engrams, learn the Pack Mule Engram and you will be able to increases your pets weight carrying ability.  Learn the Hunting Beast Engram to train your pets to hunt. Learn them all or just the ones you need. 

Zoology brings behavioral change and emotional baggage to the ARK.  Dinos, wild and tamed, have level of morale and can suffer from stress, are intelligent enough (some of them) to flee from their predators, and predators will only hunt when hungry.   

Zoology changes the core game.  It changes the behavior of wild creatures. Animal’s speed (both for tamed pets and wild animals) is reduced while injured, or torpid. Animals have varied stats, varied speed and oxygen, varied weight limits. Animals now only eat when they are hungry, or you get too close. The well fed Rex is a relaxed Rex. Animals also only attack and feed on certain other animals, they have a food chain that they follow.. It adds additional stats to the dinos, the most important to a player being Loyalty, Morale and Stress.

Install on a server[] or for single player[].

Please review the tribe settings[] as well.

For more information on Zoology, how it works, the pet loyalty and emotional systems, installation settings and more visit the Zoology Information Center[]

For all bug reports and suggestions please see the pinned discussion here:

Thanks to

Timmy Carbine. Timmy and I bounced ideas a lot. A good sounding board is invaluable, and he has artistic talent as shown in the Zoology logo he made for this mod. Check out his workshop and his YouTube Channel.

The Ark Modding Community[]. The people there are like people everywhere, mostly harmless

This mod/code/work is protected by the Attribution-NonCommercial-NoDerivatives 4.0 International Creative Commons License.
It is expressly forbidden to use the Zoology mod on any server offering any form of "pay to win" service to it's players. If you are unsure if your server is "pay to win" then it probably is.

For Up to date Information[] on Zoology, how it works, the pet emotional systems, installation settings and what it means to be a core mod please visit the Zoology Information Center[]
Popular Discussions View All (87)
Apr 12 @ 7:49pm
1-Hit Kill Dinos and Incredibly Slow Dino Speed
C o r v u s
Apr 13 @ 6:02pm
Loyalty not going up
Apr 23 @ 9:27am
[Bug] Tamed Ravager moving intermittently
< >
pake 3 hours ago 
I finally got my mod working over the weekend. Thanks for all your help :D
aie 21 hours ago 
Can someone please help me with hyaenodon taming. I met 2 adoledcents and approached them. Apparently they dont run away. However i dont see any action to be done. Are they bugged? Can I tame them?
aie Apr 22 @ 1:38am 
I knew that, just wondering why I didn't see any update on the ark screen. Perhaps the update was very short? Fortunately I regularly make a backup of my "saved" directory, it is easy. I can only recommend it.
eskerpaleo Apr 21 @ 8:29pm 
@Glog Thanks!
5634ann6379 Apr 21 @ 7:22pm 
Good to know, Thank you!
Glog  [author] Apr 21 @ 2:30pm 
Ok, so the thing is this is a well known ark problem. ARK will let you load a single player saved game while it is still downloading an update for a mod used in that saved game. This results in the mod not being loaded so all items and dinos from that mod will be deleted when the game loads. This is explained in the setup page for single player here:

The best thing to do is run a proper ARK server on your PC or on a second PC if you have one.
eskerpaleo Apr 21 @ 11:42am 
@aie All my dinos dissapeared as well, playing a single-player game. Pretty stomache-churning.
aie Apr 21 @ 6:25am 
wups, I lost all my dinos. I didn't see an update?! Was there a recent update which I didn't wait for? I have a backup but it is quite old
Glog  [author] Apr 20 @ 9:06pm 
This si a bug, the notebook is bugged and on the list of things to be fixed but it is low priority at the moment, soon after I get the next feature working I will go back and update the notebook.

But while the note book is bugged the actual dinos studdied is correctly recorded in game.
5634ann6379 Apr 20 @ 6:31pm 
So hoping this is not just some user error, but i have your mod on our server and when I studyyoung dinos (tested mostly on trikes and equus) it will show in my journal that there is one studied. the next time i open my journal it says 0 studied. Do you know what i can do to fix this or if this is a bug?

Also, i have studied 30 adult equus and several little ones (unknown how many due to it not being tracked in my journal, discribed above), and still have not been able to tame them. If i am reading your chart correctly it is only supose to stude 6, correct? I am guessing this is due to the little dinos not staying recorded in my journal with the understanding that you have to have adults and juvis to get the cert for that dino.

It should be noted there is another player on my server who has not noticed this bug in his journal.

If you could give me some advise on how to fix it on my end or if it is a bug, I would greatly appriciate it, love your mod!