diff --git a/Resources/Prototypes/Entities/Mobs/Species/diona.yml b/Resources/Prototypes/Entities/Mobs/Species/diona.yml
index 0e34ae0ff5..6ca493aedd 100644
--- a/Resources/Prototypes/Entities/Mobs/Species/diona.yml
+++ b/Resources/Prototypes/Entities/Mobs/Species/diona.yml
@@ -88,9 +88,6 @@
           - MobLayer
   - type: Inventory
     templateId: diona
-  - type: MovementSpeedModifier
-    baseWalkSpeed : 1.5
-    baseSprintSpeed : 3.5
   - type: Speech
     speechVerb: Plant
   - type: Vocal
diff --git a/Resources/Prototypes/Entities/Mobs/Species/moth.yml b/Resources/Prototypes/Entities/Mobs/Species/moth.yml
index 0e144b3bf3..4198c605dd 100644
--- a/Resources/Prototypes/Entities/Mobs/Species/moth.yml
+++ b/Resources/Prototypes/Entities/Mobs/Species/moth.yml
@@ -38,8 +38,6 @@
       Female: UnisexMoth
       Unsexed: UnisexMoth
   - type: MovementSpeedModifier
-    baseWalkSpeed : 2.5
-    baseSprintSpeed : 4.5
     weightlessAcceleration: 1.5 # Move around more easily in space.
     weightlessFriction: 1
     weightlessModifier: 1
diff --git a/Resources/Prototypes/Entities/Mobs/Species/reptilian.yml b/Resources/Prototypes/Entities/Mobs/Species/reptilian.yml
index 43b2932fe2..5a4518c7b5 100644
--- a/Resources/Prototypes/Entities/Mobs/Species/reptilian.yml
+++ b/Resources/Prototypes/Entities/Mobs/Species/reptilian.yml
@@ -59,9 +59,6 @@
     heatDamage:
       types:
         Heat : 0.1 #per second, scales with temperature & other constants
-  - type: MovementSpeedModifier
-    baseWalkSpeed : 2.5
-    baseSprintSpeed : 4.5
 
 - type: entity
   parent: BaseSpeciesDummy