Answer:
There are two answers to this question. Gold or Aluminum.
Ants
Earthworms
Rabbits
Armadillo
Badger
Bilby
Burrowing owl
Chipmunks
Olm
Mole
Meetkats
Involuntary, meaning things in the body such as your heart is all regulated to act unconsciously while also receiving directives from the brain.
This is called the G1 phase I'm sure.
Musculus is the latin word for muscle