Evolution
Can a Carnivore have Scavenger, and can a non-Carnivore Scavenger take food from the Watering Hole?
Yes to both. A Carnivore can have Scavenger and gains extra meat whenever a Carnivore reduces another species' Population. A non-Carnivore Scavenger can feed at the Watering Hole, since every species is an omnivore unless it has the Carnivore trait, but a Carnivore cannot. Scavenged meat always comes from the Food Bank.