DO NOT believe that this reduces weight on its inventory. As of today AUG 2020 I tested stacks of meats and berries etc, IT DOESNT. But instead it increases spoil timer of foods, meats and berries on its inventory. ⬆️ to prevent ppl from false informations!
For those of you who play Ark Mobile, hope of obtaining one of these fluffy little dessert kittens is not lost. They spawn in dungeons. Go to the obelisk, kill one, but don’t harvest the body. Instead, check it’s inventory and take the implant, because you cannot tame things in dungeons. Finish the dungeon or whatever, then go to any of the three obelisks and revive it, they are not hard to knock out, I just use a club, my fists, or an equals buck kick. Feed your new friend berries until he realizes you WILL NOT leave until he joins your army and becomes the new king and sits on the throne in the shrine castle you have built for his royal highness. So, yeah. Those of you upset that the dossier is in the game and the jerboa isn’t, it is. You just gotta work for it, but it’s worth it. (Yes, I do have a jerboa castle and a large royal family. They’re like pringles, you can never have just one.)
The weight reduction does work. However the actual numerical weight of the items don't change. When placed in its inventory the weight looks the same. But when you pick it up after placing heavy items in its inventory look to see how much weight your actually carrying when it's on your shoulders. I promise you'll be happy