diff --git a/manimlib/mobject/mobject.py b/manimlib/mobject/mobject.py
index 58fda4b1..354ff575 100644
--- a/manimlib/mobject/mobject.py
+++ b/manimlib/mobject/mobject.py
@@ -359,8 +359,9 @@ class Mobject(object):
                 if p not in excluded:
                     ancestors.append(p)
                     to_process.append(p)
-        # Remove redundancies while preserving order
+        # Ensure mobjects highest in the hierarchy show up first
         ancestors.reverse()
+        # Remove list redundancies while preserving order
         return list(dict.fromkeys(ancestors))
 
     def add(self, *mobjects: Mobject):