diff --git a/app/main.py b/app/main.py
index d3ede356..29f10d77 100644
--- a/app/main.py
+++ b/app/main.py
@@ -26,8 +26,8 @@ def hide(self) -> None:
 
 class Carnivore(Animal):
     @staticmethod
-    def bite(animal: Herbivore) -> None:
-        if not animal.hidden and isinstance(animal, Herbivore):
-            animal.health -= 50
-        if animal.health <= 0:
-            Animal.alive.remove(animal)
+    def bite(creature: Animal) -> None:
+        if not creature.hidden and isinstance(creature, Herbivore):
+            creature.health -= 50
+        if creature.health <= 0:
+            Animal.alive.remove(creature)