How can I replace a text delimited string list item with multiple list items in a python list?

Question

Given a list:

mylist = [\'dog\', \'cat\', \'mouse_bear\', \'lion_tiger_rabbit\', \'ant\']

I\'d like a one-liner to return a new list:

Answer 1

This works:

[i for sublist in [j.split('_') for j in mylist] for i in sublist]