How does a multi-headed creature like the Hydra or Cerberus drink? Do all of the heads drink simultaneously? Do they take turns drinking, while other heads remain alert to their surroundings, like a flock of geese?

Nelson
@skyfaller@jawns.club
How does a multi-headed creature like the Hydra or Cerberus drink? Do all of the heads drink simultaneously? Do they take turns drinking, while other heads remain alert to their surroundings, like a flock of geese?