diff --git a/Resources/Locale/en-US/interaction/interaction-popup-component.ftl b/Resources/Locale/en-US/interaction/interaction-popup-component.ftl
index a6eacf13c5d..24d20d3368e 100644
--- a/Resources/Locale/en-US/interaction/interaction-popup-component.ftl
+++ b/Resources/Locale/en-US/interaction/interaction-popup-component.ftl
@@ -50,6 +50,7 @@ petting-failure-sloth = You reach out to pet {THE($target)}, but {SUBJECT($targe
 petting-failure-holo = You reach out to pet {THE($target)}, but {POSS-ADJ($target)} spikes almost impale your hand!
 petting-failure-dragon = You raise your hand, but as {THE($target)} roars, you decide you'd rather not be toasty carp food.
 petting-failure-hamster = You reach out to pet {THE($target)}, but {SUBJECT($target)} attempts to bite your finger and only your quick reflexes save you from an almost fatal injury.
+petting-failure-pibble = You reach out to pet {THE($target)}, and {SUBJECT($target)} lunges at you!
 petting-failure-bear = You reach out to pet {THE($target)}, but {SUBJECT($target)} growls, making you think twice.
 petting-failure-monkey = You reach out to pet {THE($target)}, but {SUBJECT($target)} almost bites your fingers!
 petting-failure-nymph = You reach out to pet {THE($target)}, but {POSS-ADJ($target)} moves their branches away.
diff --git a/Resources/Prototypes/Catalog/Cargo/cargo_livestock.yml b/Resources/Prototypes/Catalog/Cargo/cargo_livestock.yml
index f44cb61f737..55e256c7bbe 100644
--- a/Resources/Prototypes/Catalog/Cargo/cargo_livestock.yml
+++ b/Resources/Prototypes/Catalog/Cargo/cargo_livestock.yml
@@ -58,6 +58,16 @@
   category: cargoproduct-category-name-livestock
   group: market
 
+- type: cargoProduct
+  id: LivestockPibble
+  icon:
+    sprite: Mobs/Pets/pitbull.rsi
+    state: pibble
+  product: CrateNPCPibble
+  cost: 700
+  category: Livestock
+  group: market
+
 - type: cargoProduct
   id: LivestockCorgi
   icon:
diff --git a/Resources/Prototypes/Catalog/Fills/Crates/npc.yml b/Resources/Prototypes/Catalog/Fills/Crates/npc.yml
index 10c715bb99e..b2dc4b223bb 100644
--- a/Resources/Prototypes/Catalog/Fills/Crates/npc.yml
+++ b/Resources/Prototypes/Catalog/Fills/Crates/npc.yml
@@ -81,6 +81,17 @@
       - id: MobDuckWhite
         amount: 2
 
+- type: entity
+  id: CrateNPCPibble
+  parent: CrateLivestock
+  name: pitbull crate
+  description: "Note from the shelter: Lab mix. Looking for a home without cats, birds, or children. Anxious when pet."
+  components:
+  - type: StorageFill
+    contents:
+      - id: MobPibble
+        amount: 1
+
 - type: entity
   id: CrateNPCCorgi
   parent: CrateLivestock
diff --git a/Resources/Prototypes/Datasets/Names/pitbull.yml b/Resources/Prototypes/Datasets/Names/pitbull.yml
new file mode 100644
index 00000000000..adc4778d86c
--- /dev/null
+++ b/Resources/Prototypes/Datasets/Names/pitbull.yml
@@ -0,0 +1,40 @@
+- type: dataset
+  id: names_pitbull
+  values:
+  - Amon
+  - Arioch
+  - Baby
+  - Blaze
+  - Blue
+  - Bubbles
+  - Buttercup
+  - Cuddles
+  - Cujo
+  - Daffodil
+  - Daisy
+  - Dante
+  - Demon
+  - Diesel
+  - Echo
+  - Face Eater
+  - Franny
+  - Hades
+  - Killer
+  - Lady
+  - Lucifer
+  - Luna
+  - Magnum
+  - Mammon
+  - Midas
+  - Paisley
+  - Peaches
+  - Petunia
+  - Princess
+  - Rainbow
+  - Reaper
+  - Satan
+  - Sweetie
+  - Trixie
+  - Trogdor
+  - Tutu
+  - Zeus
\ No newline at end of file
diff --git a/Resources/Prototypes/Entities/Mobs/NPCs/dogs.yml b/Resources/Prototypes/Entities/Mobs/NPCs/dogs.yml
new file mode 100644
index 00000000000..22da7583723
--- /dev/null
+++ b/Resources/Prototypes/Entities/Mobs/NPCs/dogs.yml
@@ -0,0 +1,129 @@
+- type: entity
+  parent: SimpleMobBase
+  id: MobPibble
+  name: pitbull
+  description: Nanny dog. Or a lab mix depending on who is asking.
+  components:
+  - type: MeleeWeapon
+    hidden: true
+    soundHit:
+        path: /Audio/Effects/bite.ogg
+    angle: 0
+    animation: WeaponArcBite
+    damage:
+      types:
+        Slash: 4
+        Piercing: 8
+        Blunt: 1
+        Structural: 4
+  - type: MobState
+  - type: Sprite
+    drawdepth: Mobs
+    sprite: Mobs/Pets/pitbull.rsi
+    layers:
+    - map: ["enum.DamageStateVisualLayers.Base"]
+      state: pibble
+  - type: Physics
+  - type: Fixtures
+    fixtures:
+      fix1:
+        shape:
+          !type:PhysShapeCircle
+          radius: 0.35
+        density: 135 #Bigger than Laika
+        mask:
+        - MobMask
+        layer:
+        - MobLayer
+  - type: Appearance
+  - type: Inventory
+    speciesId: dog
+    templateId: pet
+  - type: InventorySlots
+  - type: Strippable
+  - type: UserInterface
+    interfaces:
+    - key: enum.StrippingUiKey.Key
+      type: StrippableBoundUserInterface
+  - type: DamageStateVisuals
+    states:
+      Alive:
+        Base: pibble
+      Critical:
+        Base: pibble_dead
+      Dead:
+        Base: pibble_dead
+  - type: Butcherable
+    spawned:
+    - id: FoodMeat
+      amount: 3
+  - type: ReplacementAccent
+    accent: dog
+  - type: InteractionPopup
+    successChance: 0.7
+    interactSuccessString: petting-success-dog
+    interactFailureString: petting-failure-pibble
+    interactSuccessSound:
+      path: /Audio/Animals/small_dog_bark_happy.ogg
+    hostileOnFail: true
+  - type: DogVision
+  - type: NpcFactionMember
+    factions:
+    - Pibble
+  - type: HTN
+    rootTask:
+      task: SimpleHostileCompound
+    blackboard:
+      NavSmash: !type:Bool
+        true
+  - type: Grammar
+    attributes:
+      proper: true
+  - type: RandomMetadata
+    nameSegments: [names_pitbull]
+  - type: Speech
+    speechVerb: Canine
+    speechSounds: Vulpkanin
+  - type: LanguageKnowledge
+    speaks:
+    - Dog
+    understands:
+    - Dog
+    - GalacticCommon
+
+- type: entity
+  parent: MobPibble
+  id: MobPibbleVent
+  name: ventbull
+  description: Some kind of pitbull mix... or maybe the next stage in pibble evolution?
+  components:
+  - type: MeleeWeapon
+    hidden: true
+    soundHit:
+        path: /Audio/Effects/bite.ogg
+    angle: 0
+    animation: WeaponArcBite
+    damage:
+      types:
+        Slash: 2
+        Piercing: 5
+        Blunt: 0.5
+        Structural: 2
+  - type: Fixtures
+    fixtures:
+      fix1:
+        shape:
+          !type:PhysShapeCircle
+          radius: 0.28
+        density: 135
+        mask:
+        - SmallMobMask
+        layer:
+        - SmallMobLayer
+  - type: Sprite
+    scale: 0.8, 0.6
+    drawdepth: Mobs
+    sprite: Mobs/Pets/ventbull.rsi
+    layers:
+    - map: ["enum.DamageStateVisualLayers.Base"]
+      state: pibble
diff --git a/Resources/Prototypes/Entities/Mobs/Player/harpy.yml b/Resources/Prototypes/Entities/Mobs/Player/harpy.yml
index 12df7ff1037..f4222301b50 100644
--- a/Resources/Prototypes/Entities/Mobs/Player/harpy.yml
+++ b/Resources/Prototypes/Entities/Mobs/Player/harpy.yml
@@ -21,3 +21,4 @@
   - type: NpcFactionMember
     factions:
     - NanoTrasen
+    - Birb
diff --git a/Resources/Prototypes/GameRules/events.yml b/Resources/Prototypes/GameRules/events.yml
index ca885117449..300e7a7f3b9 100644
--- a/Resources/Prototypes/GameRules/events.yml
+++ b/Resources/Prototypes/GameRules/events.yml
@@ -243,6 +243,8 @@
       prob: 0.02
     - id: MobMouse2
       prob: 0.02
+    - id: MobPibbleVent
+      prob: 0.005
 
 - type: entity
   id: PowerGridCheck
diff --git a/Resources/Prototypes/Nyanotrasen/Entities/Clothing/Uniforms/jumpsuits.yml b/Resources/Prototypes/Nyanotrasen/Entities/Clothing/Uniforms/jumpsuits.yml
index b238ef7b063..55b85222486 100644
--- a/Resources/Prototypes/Nyanotrasen/Entities/Clothing/Uniforms/jumpsuits.yml
+++ b/Resources/Prototypes/Nyanotrasen/Entities/Clothing/Uniforms/jumpsuits.yml
@@ -8,8 +8,8 @@
     sprite: Nyanotrasen/Clothing/Uniforms/Jumpsuit/mailman.rsi
   - type: Clothing
     sprite: Nyanotrasen/Clothing/Uniforms/Jumpsuit/mailman.rsi
-#  - type: ClothingAddFaction
-#    faction: Mailman
+  - type: ClothingAddFaction
+    faction: Mailman
 
 - type: entity
   parent: ClothingUniformSkirtBase
@@ -21,8 +21,8 @@
     sprite: Nyanotrasen/Clothing/Uniforms/Jumpskirt/mailman.rsi
   - type: Clothing
     sprite: Nyanotrasen/Clothing/Uniforms/Jumpskirt/mailman.rsi
-#  - type: ClothingAddFaction
-#    faction: Mailman
+  - type: ClothingAddFaction
+    faction: Mailman
 
 - type: entity
   parent: ClothingUniformJumpsuitResearchDirector
diff --git a/Resources/Prototypes/Nyanotrasen/Entities/Markers/Spawners/Random/animals.yml b/Resources/Prototypes/Nyanotrasen/Entities/Markers/Spawners/Random/animals.yml
index 0a84109a98c..a632a0a22b0 100644
--- a/Resources/Prototypes/Nyanotrasen/Entities/Markers/Spawners/Random/animals.yml
+++ b/Resources/Prototypes/Nyanotrasen/Entities/Markers/Spawners/Random/animals.yml
@@ -51,4 +51,5 @@
       - MobFrog
       - MobMothroach
       - MobArcticFox
+      - MobPibble
     rareChance: 0.15
diff --git a/Resources/Prototypes/Nyanotrasen/Entities/Mobs/Player/felinid.yml b/Resources/Prototypes/Nyanotrasen/Entities/Mobs/Player/felinid.yml
index 18047aa2e20..9a04a0458e0 100644
--- a/Resources/Prototypes/Nyanotrasen/Entities/Mobs/Player/felinid.yml
+++ b/Resources/Prototypes/Nyanotrasen/Entities/Mobs/Player/felinid.yml
@@ -44,4 +44,5 @@
   - type: NpcFactionMember
     factions:
     - NanoTrasen
+    - Cat
 
diff --git a/Resources/Prototypes/ai_factions.yml b/Resources/Prototypes/ai_factions.yml
index 3dfb35c7a69..02a2ac168d3 100644
--- a/Resources/Prototypes/ai_factions.yml
+++ b/Resources/Prototypes/ai_factions.yml
@@ -83,3 +83,19 @@
   - Zombie
   - SimpleHostile
   - Dragon
+
+- type: npcFaction
+  id: Pibble
+  hostile:
+  - Cat
+  - Birb
+  - Mailman
+
+- type: npcFaction
+  id: Mailman
+
+- type: npcFaction
+  id: Cat
+
+- type: npcFaction
+  id: Birb
diff --git a/Resources/Textures/Mobs/Pets/pitbull.rsi/meta.json b/Resources/Textures/Mobs/Pets/pitbull.rsi/meta.json
new file mode 100644
index 00000000000..86ff0bf07d7
--- /dev/null
+++ b/Resources/Textures/Mobs/Pets/pitbull.rsi/meta.json
@@ -0,0 +1,22 @@
+{
+  "version": 1,
+  "size":
+  {
+    "x": 32,
+    "y": 32
+  },
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Hyenh#6078 (313846233099927552)",
+  "states":
+  [
+    {
+      "name": "pibble",
+      "directions": 4
+    },
+
+    {
+      "name": "pibble_dead",
+      "directions": 1
+    }
+  ]
+}
diff --git a/Resources/Textures/Mobs/Pets/pitbull.rsi/pibble.png b/Resources/Textures/Mobs/Pets/pitbull.rsi/pibble.png
new file mode 100644
index 00000000000..8644989d936
Binary files /dev/null and b/Resources/Textures/Mobs/Pets/pitbull.rsi/pibble.png differ
diff --git a/Resources/Textures/Mobs/Pets/pitbull.rsi/pibble_dead.png b/Resources/Textures/Mobs/Pets/pitbull.rsi/pibble_dead.png
new file mode 100644
index 00000000000..2054aea3e5d
Binary files /dev/null and b/Resources/Textures/Mobs/Pets/pitbull.rsi/pibble_dead.png differ
diff --git a/Resources/Textures/Mobs/Pets/ventbull.rsi/meta.json b/Resources/Textures/Mobs/Pets/ventbull.rsi/meta.json
new file mode 100644
index 00000000000..86ff0bf07d7
--- /dev/null
+++ b/Resources/Textures/Mobs/Pets/ventbull.rsi/meta.json
@@ -0,0 +1,22 @@
+{
+  "version": 1,
+  "size":
+  {
+    "x": 32,
+    "y": 32
+  },
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Hyenh#6078 (313846233099927552)",
+  "states":
+  [
+    {
+      "name": "pibble",
+      "directions": 4
+    },
+
+    {
+      "name": "pibble_dead",
+      "directions": 1
+    }
+  ]
+}
diff --git a/Resources/Textures/Mobs/Pets/ventbull.rsi/pibble.png b/Resources/Textures/Mobs/Pets/ventbull.rsi/pibble.png
new file mode 100644
index 00000000000..57b5a3d2b5e
Binary files /dev/null and b/Resources/Textures/Mobs/Pets/ventbull.rsi/pibble.png differ
diff --git a/Resources/Textures/Mobs/Pets/ventbull.rsi/pibble_dead.png b/Resources/Textures/Mobs/Pets/ventbull.rsi/pibble_dead.png
new file mode 100644
index 00000000000..5482582a183
Binary files /dev/null and b/Resources/Textures/Mobs/Pets/ventbull.rsi/pibble_dead.png differ