system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does something having no face/minimal features make it cute?

I know the concept of what's 'cute' varies from person to person, but there are certain things in this example that are almost universal.


There are classic character designs like Hello Kitty and Marvin the Martian who have no mouths, but are considered adorable.


The Valais Blacknose sheep has such dark facial fur that you can't really see its features, but it often gets referred to as 'world's cutest sheep' (and honestly, agreed). Shouldn't something that looks as if it has a gaping void in its face be inherently disturbing?


Why is there such a fine line between endearing and unsettling here?
gpt
Our brains are engineered to think human babies are cute so that we want to keep them alive. Babies have round faces and small features. A cartoon with minimal features roughly resembles a baby's face.