We have enslaved the rest of the animal creation, and have treated our distant cousins in fur and feathers so badly that beyond doubt, if they were able to formulate a religion, they would depict the Devil in human form.
We were ordered out to quell an uprising of the Indians, and were out for several days, had numerous skirmishes during which six of the soldiers were killed and several severely wounded.
Where we have good, testable explanations, they then have to be tested, and we drop the ones that fail the tests.